Wednesday, July 15, 2009

Hand Washing

"Wash your hands!" How many times have you heard that from your parents? You might think they're just nagging you, but actually the most important thing you can do to keep from getting sick is to wash your hands.

According to the Centers for Disease Control and Prevention (CDC), if you don't wash your hands frequently, you can pick up germs from other sources and then infect yourself. You're at risk every time you touch your eyes, nose, or mouth. In fact, one of the most common ways people catch colds is by rubbing their nose or their eyes after the cold virus has gotten on their hands.

If people don't wash their hands frequently (especially when they're sick), they can spread germs directly to other people or onto surfaces that others touch. And before you know it, everyone around you is coming down with something!

The First Line of Defense Against Germs

Think about all of the things that you touched today ― from the telephone to the toilet. Maybe you blew your nose and played with your dog. Whatever you did, you came into contact with germs. So it's easy for germs on your hand to end up in your mouth (maybe when you scarfed that handful of popcorn with your teammates right after soccer practice).

By frequently washing your hands the right way, you'll wash away germs ― such as bacteria and viruses ― that you have picked up from other people, through contaminated water and food, from tainted surfaces, or from animals and animal waste.

Defensive Hand Washing

Did you know that an estimated 1 out of 5 people don't wash their hands after using the restroom? In 2005 the American Society for Microbiology did a survey of hand washing. They asked people questions about their hand-washing habits and also watched people in public restrooms. The results were kind of gross. For example:

  • People don't always wash their hands after using the bathroom ― 91% of adults say they always wash their hands after using public restrooms, but just 83% were seen doing so.
  • People wash their hands less at home ― 83% say they wash their hands after using the bathroom at home. Germs are germs, and a bathroom is a bathroom.
  • Only 32% of people in the survey said they wash their hands after coughing or sneezing. So it's nice that you protect the people around you by covering your mouth with your hand when you cough. But if you then reach for your friend's pizza, you might as well not have bothered.
  • Just 21% wash their hands after handling money.
  • Only 42% of the people in the survey washed up after petting a dog or cat. You've seen your dog roll in that mystery smell in the park or your cat rub against you after using the litter pan. Fido and Fluffy are dirtier than you think.

 

And even if you're a good hand-washer, your friends may be harboring some dirty little secrets: Students don't wash their hands often or well. In one study, only 58% of female and 48% of male middle- and high-school students washed their hands after using the bathroom. Yuck!

How to Wash Your Hands Correctly

There's a right way to wash your hands. A splash of water and a drop or two of soap won't do the trick. Follow these simple steps to keep your hands clean:

  • Use warm water (not cold or hot).
  • Use whatever soap you like. Antibacterial soaps are popular but regular soap works fine. If you suspect that your hands have come into contact with someone with an infection, think about using an alcohol hand sanitizer.
  • Rub your hands together vigorously and scrub all surfaces: Lather up on both sides of your hands, your wrists, between your fingers, and around your nails. Wash for 15 seconds ― about how long it takes to sing "Happy Birthday."
  • Rinse well under warm running water and pat dry with a clean towel.
  • In public restrooms, consider using a paper towel to flush the toilet and open the door because toilet and door handles harbor germs. Throw the towel away after you leave.

To prevent chapping or dry skin, use a mild soap with warm water, pat rather than rub hands dry, and apply a moisturizing lotion liberally afterwards.

When there is no soap or water available, waterless hand soaps or scrubs are a good alternative. They're usually available as a liquid, wipes, or towelettes, and often come in small travel sizes that are perfect for keeping in your book bag, car, locker, purse, or sports bag.

Remember, proper and frequent hand washing is the key to preventing the spread of many common infections. So hum a few verses of "Happy Birthday" and lather up!

 
 

Fainting

Desiree got out of the whirlpool at the gym and was on her way to the showers when she felt incredibly dizzy. Next thing she knew, she woke up on the locker room floor with her sister looking over her anxiously. She was pretty scared ― what happened?

Desiree's sister thought she'd probably fainted. Although Desiree felt like she'd been unconscious for hours, her sister said she was out for less than a minute. Since Desiree felt fine and she'd never fainted before, she decided she didn't need to go to the ER.

When Desiree asked her school nurse about it the next day, she said Desiree probably fainted because she stayed in the whirlpool too long or the temperature was set too high, affecting her body temperature.

Why Do People Faint?

Fainting is pretty common in teens. The good news is that most of the time it's not a sign of something serious.

When someone faints, it's usually because changes in the nervous system and circulatory system cause a temporary drop in the amount of blood reaching the brain. When the brain is robbed of its blood supply, a person loses consciousness and falls over. After lying down, a person's head is at the same level as the heart, which helps restore blood flow to the brain. So the person usually recovers after a minute or two.

Reasons Why You Might Swoon

Here are some of the reasons why teens faint:

  • Physical triggers. Getting too hot or being in a crowded, poorly ventilated setting are common causes of fainting in teens. People can also faint after exercising too much or working out in excessive heat and not drinking enough fluids (so the body becomes dehydrated). Fainting can also be triggered by other causes of dehydration, as well as hunger or exhaustion. Sometimes just standing for a very long time or getting up too quickly after sitting or lying down can lead someone to faint.
  • Emotional stress. Emotions like fright, pain, anxiety, or shock can affect the body's nervous system, causing blood pressure to drop. This is the reason why people faint when something frightens or horrifies them, like the sight of blood.
  • Hyperventilation. A person who is hyperventilating is taking fast breaths, which causes carbon dioxide (CO2) to decrease in the blood. This can make a person faint. People who are extremely stressed out, in shock, or have certain anxiety disorders may faint as a result of hyperventilation.
  • Drug use. Some illegal drugs ― such as cocaine or methamphetamine ― can cause fainting (and even a heart attack in some cases). Inhalant use ("huffing") can lead to fainting by causing problems with a person's heartbeat. Fainting also is a side effect of some prescription medications.
  • Low blood sugar. The brain depends on a constant supply of sugar from the blood to work properly and keep a person awake. People who are taking insulin shots or other medications for diabetes can develop low blood sugar and pass out if they take too much medicine or don't eat enough. Sometimes people without diabetes who are starving themselves (as with crash dieting) can drop their blood sugar low enough to faint.
  • Anemia. A person with anemia has fewer red blood cells than normal, which decreases the amount of oxygen delivered to the brain and other tissues. Girls who have heavy periods or people with iron-deficiency anemia for other reasons (like not getting enough iron in their diet) may be more likely to faint.
  • Pregnancy. During pregnancy the body normally undergoes a lot of changes, including changes in the circulatory system, which can cause a woman to faint. In addition, the body's fluid requirements are increased, so pregnant women may faint if they aren't drinking enough. And as the uterus grows it can press on and partially block blood flow through large blood vessels, which can decrease blood supply to the brain.
  • Eating disorders. People with anorexia or bulimia may faint for a number of reasons, including dehydration, low blood sugar, and changes in blood pressure or circulation caused by starvation, vomiting, or overexercising.
  • Cardiac problems. An abnormal heartbeat and other heart problems can cause a person to faint. If someone is fainting a lot, especially during exercise or exertion, doctors may suspect heart problems and run tests to look for a heart condition.

Some medical conditions ― like seizures or a rare type of migraine headache ― can cause people to seem like they are fainting. But they're not the same thing as fainting and are handled differently.

Can You Prevent Fainting?

Some people feel dizzy immediately before they faint. They may also notice changes in vision (such as tunnel vision), a faster heartbeat, sweating, and nausea. Someone who is about to faint may even throw up.

If you think you're going to faint, you may be able to head it off by taking these steps:

  • If possible, lie down. This can help prevent a fainting episode as it allows blood to circulate to the brain. Just be sure to stand up again slowly when you feel better ― move to a sitting position for several minutes first, then to standing.
  • Sit down with your head lowered forward between your knees. This will also help blood circulate to the brain, although it's not as good as lying down. When you feel better, move slowly into an upright seated position, then stand.
  • Don't let yourself get dehydrated. Drink enough fluids, especially when your body is losing more water due to sweating or being in a hot environment.
  • Keep blood circulating. If you have to stand or sit for a long time, periodically tense your leg muscles or cross your legs to help improve blood return to the heart and brain. And try to avoid overheated, cramped, or stuffy environments.

What Should You Do?

If you've only fainted once and the reasons why are obvious (like being in a hot, crowded setting), then there's usually no need to worry about it. But if you have a medical condition or are taking prescription medications, it's a good idea to call your doctor. You should also let your doctor know if you hurt yourself when you fainted (for example, if you banged your head really hard).

If you also have chest pain, palpitations (heart beating fast for no reason), shortness of breath, or seizures, or the fainting occurred during exercise or exertion, talk with your doctor ― especially if you've fainted more than once. Frequent fainting may be a sign of a health condition, like a heart problem.

What Do Doctors Do?

For most teens, fainting is not connected with other health problems, so a doctor will probably not need to do anything beyond examining you and asking a few questions. If concerned about your fainting, the doctor may order some tests in addition to giving you a physical exam and taking your medical history. Tests depend on what the doctor thinks might be causing the problem, but common tests include an EKG (a type of test for heart problems), a blood sugar test, and sometimes a blood test to make sure a person is not anemic.

If test results show that fainting is a symptom of another problem, such as anemia, the doctor will advise you on treatments for that problem.

Helping Someone Who Faints

If you're with someone who has fainted, try to make sure the person is lying flat, but avoid moving the person if you think he or she might have been injured when falling (moving an injured person can make things worse).

Instead, loosen any tight clothing ― such as belts, collars, or ties ― to help restore blood flow. Propping the person's feet and lower legs up on a backpack or jacket can also help move blood back toward the brain.

Someone who has fainted will usually recover quickly. Because it's normal to feel a bit weak after fainting, be sure the person stays lying down. Getting up too quickly may bring on another fainting spell.

Call 911 if someone who has fainted does not regain consciousness after about a minute.

 
 

Figuring Out Health News

Jordan was gathering information for a research project on teens and suicide. She came across a news article about how some antidepressants increase the chances of suicidal thinking and behavior in kids and teens. Jordan was confused. How could a medicine that was supposed to help kids with depression actually make them feel worse? She was also worried because her sister was taking an antidepressant. After Jordan did some of her own research and looked into the issue further, though, she discovered things that set her mind at ease.

Often, news reports on health and medicine can be confusing ― and sometimes they can be downright scary. How do you know what is important and accurate?

A Study ― or Just a Story?

Large newspapers, magazines, TV networks, and radio stations often have medical reporters on staff to cover developments in health and medicine. Their job is to report complicated scientific information in a way that's easy for regular people to understand. Many health stories are accurate and balanced. But not all are. Sometimes, reporters try to quickly cram information into a short news story, and they may oversimplify the information. What you see may not be the whole picture.

To catch a viewer's attention, news reports sometimes make dramatic claims. In addition, medical news reports often focus on people's personal stories, not scientific studies. Personal stories are interesting, but often they don't prove anything about health or treatments in general. It takes a well-done study to do that. And sometimes these studies just aren't dramatic or exciting enough to make the news.

Questions to Consider

When you hear about a new medical development, the first question to ask yourself is whether the news is based on a scientific study. Knowing there's a study behind the news is only the first step, though. How the study was done (and who did it) matters too.

For example:

Was the Study Done in People?

A lot of medical research is done in the laboratory or in lab animals, not in people ― at least, not at first. Lab studies help scientists figure out whether a drug looks promising, how it works, and whether there might be side effects. But what happens in a laboratory does not necessarily work the same in people. These studies are often a beginning ― but they're usually not the end of the story.

When watching or reading a news report about a new drug or treatment, see if it tells you whether the findings involved animals or people. It might not ― so you'll have to do some sleuthing on your own to get the information.

Who Was in the Study?

Even if a study was done in people, it may not apply to you. For instance, findings from studies involving only adults may not be true for teens. Results of all-male studies may not apply to women. Research studies usually list who took part ― their sex, age, and other characteristics. Are these people like you?

In addition to who is in a study, you'll also need to keep in mind how many people took part in it. The more people in the study, the more likely it is that the study's findings will hold true for the whole population. Sometimes a study's results are announced with a big splash and then it turns out that the study only involved a few people. When researchers do the same study using the hundreds or thousands of people necessary to get really accurate (or "significant") results, those results might be different.

It's also important for the study to follow patients long enough to be sure that a treatment really works, and that additional or more serious side effects don't develop over time.

How Was the Study Designed?

There are lots of ways researchers look into new treatments and information that can help people stay healthier. Sometimes they look back at people's medical records or ask them questions to find out what might have put them at more (or less) risk for a health condition. Those studies, called retrospective studies, can provide useful clues, but they're only as reliable as a person's memory or the accuracy of medical records.

Prospective studies are usually better. They look forward, not backward. The best of these studies follow thousands of people long enough to see whether the things they do ― like diet and exercise ― have a good or bad effect on their health.

For new drugs or treatments, randomized, controlled clinical trials are the best way for deciding whether a treatment works. In this kind of research, some of the participants get the drug, vitamin, or other therapy being tested. Others get what is called a placebo (a fake treatment or sugar pill that contains no medicine at all). In this type of study, the patients are "blinded" ― they don't know who is getting the treatment and who is getting the placebo until the trial is over. That way, their response to the drug or placebo can't be influenced by whether they think they have been taking the real drug or not. In a double-blind study, neither the patients nor the researchers know which patients have taken the drug or the placebo until the study is over.

It's rare for one study to be the final word. Medical knowledge comes from many studies done over time ― and frequently there are contradictions along the way. Often, different studies of a particular treatment or condition, all done properly, can still have different (or even completely opposite) results.

Also, the news media (and even researchers themselves!) are more likely to report the findings of a study if that study shows results that are different from what is thought to be true. For example, the media are much more likely to do a story about a study that shows that eating a particular type of food may help prevent cancer. But other studies may show that eating that food doesn't really make much difference.

The scientific community can take into account all the different studies and decide that eating the food might not really help a person avoid cancer. But to the regular person who just hears about one study through the news, that food suddenly becomes a cancer-fighting miracle.

Where Do Reporters Get Their Stories?

Sometimes, reporters get their news stories by following what is published in medical journals. The best medical and scientific journals ― like The New England Journal of Medicine, The Journal of the American Medical Association, Pediatrics, Science, and Nature ― carefully review studies before publishing them so the information is trustworthy.

These publications are written for the scientific community, and the language in them can be hard for people who aren't doctors or scientists to understand. News reporters who get their information from scientific journals might do a good job of explaining the study and what it means ― but not always.

Some reporters don't always wait until something is published before reporting it as news. Sometimes reporters hear information from researchers before a study has even been published and they want to bring it to the public's attention quickly. Without a published study, though, a reporter may not have all the facts.

So how do you get closer to the truth?

 

Doing Your Own Research

You can get additional information about a news report on the Internet. Put keywords from the news report into a search engine and see what comes up. The results will give you lots of different perspectives ― particularly if the issue is big news ― so you're not relying on just one news report for the facts. You'll need to screen what you see, though. Many of the sites that show up in search results may not have the most accurate and up-to-date information.

On commercial websites (sites with URLs that end in .com), look to see if the site has advertising. If it does, it may be biased in favor of the advertiser. Of course, having advertising on a site doesn't necessarily mean it is biased. But if you're going to be a good "information consumer," you need to take that possibility into account.

Also check to see whether a doctor or other medical expert has reviewed the information you're reading, and whether the date on the information is recent.

The websites of government health agencies ― such as the National Institutes of Health (NIH), the Centers for Disease Control and Prevention (CDC), and the U.S. Food and Drug Administration (FDA) ― usually give accurate and unbiased information. Established medical organizations, such as the American Academy of Pediatrics, and associations, such as the American Psychiatric Association, are other good sources.

Getting Help

The best way to get a full understanding of medical news is to ask someone like a doctor or science teacher for help in figuring out what it all means.

Jordan talked to her science teacher about the antidepressant story. She helped Jordan understand that certain antidepressants (like the one Jordan's sister was taking) are OK for teens. She also helped her discover that the study results didn't mean all the teens in the study committed suicide while on the medication. In fact, in this study, none of the patients on the medication committed suicide. Instead, some reported thinking about suicide more. Jordan also learned about how important it is for teens on antidepressants to see their doctors regularly so their medications can be monitored and adjusted.

Reading or watching medical news isn't a substitute for seeing a doctor. Trying to diagnose yourself or changing or stopping your medicine based on something you've read or heard can be dangerous. News reports often focus only on the positive and don't mention the downsides, or side effects, of a medication or other treatment. Or they may report a dramatic or scary side effect of a medication that is really very rare, or fail to mention the large number of patients who might get very sick if they didn't take the drug. Your doctor can help you weigh the benefits and risks.

As Jordan discovered, understanding what's behind medical news can take away worry and concern. And knowing more can help you ask good questions about your own health when you see your doctor.

 

Tuesday, July 14, 2009

What Is Cellulite?

Cellulite is the lumpy substance resembling cottage cheese that is commonly found on the thighs, stomach, and butt. Cellulite is actually a fancy name for collections of fat that push against the connective tissue beneath a person's skin, which causes the surface of the skin to dimple or pucker and look lumpy.

You can check to see if you have cellulite by pinching the skin around your upper thigh. If it looks a bit lumpy, you probably have it. And if you do have cellulite, you're definitely not alone: Most girls and women — and some men — have cellulite.

Several factors influence whether a person has cellulite and how much they have. Your genes, your gender, the amount of fat on your body, your age, and the thickness of your skin are all associated with the amount of cellulite you have or how visible it is.

Whatever the cause of cellulite, it's important to know that there aren't any miracle products, treatments, or medicines that can make it go away. For example, some fancy salon treatments that promise to get rid of cellulite simply cause your skin to puff up through deep massaging, temporarily reducing the appearance of cellulite.

Treatments like liposuction (surgery to remove fat) and mesotherapy (injection of drugs into cellulite) are either expensive or may produce only temporary improvement. Many doctors even warn that liposuction is not an effective treatment for cellulite because liposuction is designed to remove deep fat instead of cellulite, which is close to the skin.

If you have cellulite, chances are you won't like it. It's important to remember, though, that almost everyone wishes that something about their body was a bit different. This is particularly true for teens whose bodies are going through all sorts of changes caused by puberty. 

If you decide that you want to try to reduce the amount of cellulite you have, the best thing to do is to decrease excess body fat. If you think — and your doctor agrees — that you are overweight, eat fewer calories and exercise more. Experts agree that an exercise routine that combines aerobic exercise with strength training is the best weapon against cellulite. In the meantime, if you want to conceal your cellulite, try using a self-tanning product. Cellulite tends to be a little bit less noticeable on darker skin.

Tanning

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Want to banish your pale skin in favor of a deep, dark tan? Join the club. Especially when summer looms, many people start considering the best way to get that sun-bronzed glow — turning to self-tanners, tanning booths, a stretch in the sun, or a combination of these.

To many people, summer means hanging out at the pool or the beach, soaking up rays and baking in the sun in pursuit of the perfect golden tan. Indeed, most Americans, including up to 80% of people under age 25, think they look better with a tan.

But before you don your bathing suit and head to the pool — or into a tanning booth — spend a few minutes finding out about your skin and sun exposure. These facts can help you get the look you want without stressing your skin.

How Tanning Happens

The sun's rays contain two types of ultraviolet radiation that reach your skin: UVA and UVB. UVB radiation burns the upper layers of skin (the epidermis), causing sunburns.

UVA radiation is what makes people tan. UVA rays penetrate to the lower layers of the epidermis, where they trigger cells called melanocytes (pronounced: mel-an-oh-sites) to produce melanin. Melanin is the brown pigment that causes tanning.

Melanin is the body's way of protecting skin from burning. Darker-skinned people tan more deeply than lighter-skinned people because their melanocytes produce more melanin. But just because a person doesn't burn does not mean that he or she is also protected against skin cancer and other problems.

Tanning Downsides

UVA rays may make you tan, but they can also cause serious damage. That's because UVA rays penetrate deeper into the skin than UVB rays. UVA rays can go all the way through the skin's protective epidermis to the dermis, where blood vessels and nerves are found. Because of this, UVA rays may damage a person's immune system, making it harder to fight off diseases and leading to illnesses like melanoma, the most serious (and deadly) type of skin cancer.

Melanoma can kill. If it's not found and treated, it can quickly spread from the skin to the body's other organs.

Skin cancer is epidemic in the United States, with more than 1 million new cases diagnosed annually. Although the numbers of new cases of many other types of cancer are falling or leveling off, the number of new cases of melanoma is growing. In the past, melanoma mostly affected people in their fifties or older, but today dermatologists see patients in their twenties and even late teens with this type of cancer. Experts believe this is partly due to an increase in the use of tanning beds and sun lamps, which have high levels of UVA rays.

Doctors also think that UVB rays play a role in the development of melanoma. That's because a sunburn or intense sun exposure may increase a person's chances of developing this deadly cancer.

Exposure to UVB rays also increases your risk of getting two other types of skin cancer: basal and squamous cell carcinoma.

The main treatment for skin cancers is excision — cutting the tumors out. Since many basal or squamous cell carcinomas are on the face and neck, surgery to remove them can leave people with facial scars. The scars from surgery to remove melanomas can be anywhere on the body, and they're often large.

Cancer isn't the only problem associated with UV exposure. UVA damage to the dermis is the main factor in premature skin aging. To get a good idea of how sunlight affects the skin, look at your parents' skin and see how different it is from yours. Much of that is due to sun exposure, not the age difference! UV rays can also lead to another problem we associate with old people: the eye problem cataracts.

Sun Smarts

Staying out of the sun altogether may see to be the only logical answer. But who wants to live like a hermit? The key is to enjoy the sun sensibly, finding a balance between sun protection and those great summer activities like beach volleyball and swimming.

Sunscreens or sunblocks, which block or change the effect of the sun's harmful rays, are one of your best defenses against sun damage because they protect you without interfering with your comfort and activity levels.

The SPF number on a sunscreen shows the level of UVB protection it gives. Sunscreens with a higher SPF number provide more defense against the sun's damaging UV rays.

Here are some tips to enjoy the great outdoors while protecting your skin and eyes from sun damage.

  • Wear sunscreen with an SPF of at least 15 every day, even on cloudy days and when you don't plan on spending much time outdoors. Wearing sunscreen every day is essential because as much as 80% of sun exposure is incidental — the type you get from walking your dog or eating lunch outside. If you don't want to wear a pure sunscreen, try a moisturizer with sunscreen in it, but make sure you put on enough.
  • Use a broad-spectrum sunscreen that blocks both UVA and UVB rays. Ideally, it should also be hypoallergenic and noncomedogenic so it doesn't cause a rash or clog your pores and give you acne.
  • Apply sunscreen thickly and frequently. If you're not sure you're putting on enough, switch to one with a higher SPF. Regardless of the SPF, always reapply sunscreen after a couple of hours. Most broad-spectrum sunscreens are more effective at blocking UVB rays than UVA rays. So even if you don't get a sunburn, UVA rays could still be doing unseen damage to your skin.
  • Reapply sunscreen every 1½ to 2 hours and after swimming or sweating. In the direct sun, wear a sunscreen with a higher SPF, like SPF 30. While playing sports, use sunscreen that's waterproof and sweatproof, but still reapply sunscreen every 1½ to 2 hours.
  • Take frequent breaks. The sun's rays are strongest between 10:00 AM and 4:00 PM. During those hours, take breaks to cool off indoors or in the shade for a while before heading out again.
  • Wear a hat with a brim and sunglasses that provide almost 100% protection against ultraviolet radiation.
  • You probably know that water is a major reflector of UV radiation — but so is snow. Snow skiing and other winter activities carry significant risk of sunburn, so always apply sunblock before hitting the slopes.
  • Certain medications, such as antibiotics used to treat acne and birth control pills, can increase your sun sensitivity. Ask your doctor whether your medications might have this effect and what you should do.
  • Avoid tanning "accelerators" or tanning pills that claim to speed up the body's production of melanin or darken the skin. There's no proof that they work and they aren't approved by government agencies for tanning purposes.

Trauma-free Tans

Even when you're serious about protecting your skin, you may sometimes want the glow of a tan. Luckily, many products on the market — but not sun lamps or tanning beds — will let you tan safely and sun-free.

One safe way to go bronze is with sunless self-tanners. These "tans in a bottle" contain dihydroxyacetone (DHA), which gradually stains the dead cells in your skin's outer layer. The "tan" lasts until these skin cells slough off, so exfoliating or vigorously washing will make the color fade faster. Typically, these "fake bakes" last from several days to a week.

You may have to try a few brands of self-tanner to find one that looks best with your skin tone. Options include sprays, lotions, and towelettes, and they're easy to use. For a subtle, goof-proof glow, try one of the new moisturizers that contain a modest amount of fake tanner, letting you gradually build up a little color without blotches and staining — or the smell that some people dislike. All of these options are cheap, too, usually around $10.

Ask a friend to help you apply self-tanner to spots you can't reach, like your back, for even results all over. And be sure to wash it off of body areas that normally don't tan — like the palms of your hands and soles of your feet — otherwise, they'll just look dirty.

You might also check out salons that offer airbrush tanning. Airbrush tans may look more like a natural tan with more even results. With an airbrush tan, a salon technician will hook up a DHA solution is to a spray compressor, and spray the tan onto you. Your eyes, lips, and nose will be covered to protect them during the process, which takes anywhere from about 5 seconds to 1 minute. A few hours after the application, you'll start noticing your new, safe tan.

With both self-tanners and airbrush tanning, you'll get better results if you exfoliate your skin with a scrub brush or loofah before the tanner is applied. This evens your skin tone and removes dead skin cells.

And with both types of sunless tanning, you'll still need to wear sunscreen when you go outdoors to protect you from the sun's rays. Fake tans don't generate melanin production, so they won't protect you against sunburn. But the upside is that you get the warm glow of a tan while you keep your skin beautiful for years to come.

Tattoos

It seems like everyone has a tattoo these days. What used to be the property of sailors, outlaws, and biker gangs is now a popular body decoration for many people. And it's not just anchors, skulls, and battleships anymore — from school emblems to Celtic designs to personalized symbols, people have found many ways to express themselves with their tattoos. Maybe you've thought about getting one. But before you head down to the nearest tattoo shop and roll up your sleeve, there are a few things you need to know.

So What Exactly Is a Tattoo?

A tattoo is a puncture wound, made deep in your skin, that's filled with ink. It's made by penetrating your skin with a needle and injecting ink into the area, usually creating some sort of design. What makes tattoos so long-lasting is they're so deep — the ink isn't injected into the epidermis (the top layer of skin that you continue to produce and shed throughout your lifetime). Instead, the ink is injected into the dermis, which is the second, deeper layer of skin. Dermis cells are very stable, so the tattoo is practically permanent.

Tattoos used to be done manually — that is, the tattoo artist would puncture the skin with a needle and inject the ink by hand. Though this process is still used in some parts of the world, most tattoo shops use a tattoo machine these days. A tattoo machine is a handheld electric instrument that uses a tube and needle system. On one end is a sterilized needle, which is attached to tubes that contain ink. A foot switch is used to turn on the machine, which moves the needle in and out while driving the ink about 1/8 inch (about 3 millimeters) into your skin.

Most tattoo artists know how deep to drive the needle into your skin, but not going deep enough will produce a ragged tattoo, and going too deep can cause bleeding and intense pain. Getting a tattoo can take several hours, depending on the size and design chosen.

Does It Hurt to Get a Tattoo?

Getting a tattoo can hurt, but the level of pain can vary. Because getting a tattoo involves being stuck multiple times with a needle, it can feel like getting a bunch of shots or being stung by a hornet multiple times. Some people describe the tattoo sensation as "tingling." It all depends on your pain threshold, how good the person wielding the tattoo machine is, and where exactly on your body you're getting the tattoo. Also, keep in mind that you'll probably bleed a little.

If You're Thinking About It

If you're thinking about getting a tattoo, there is one very important thing you have to keep in mind — getting it done safely. Although it might look a whole lot cooler than a big scab, a new tattoo is also a wound. Like any other slice, scrape, puncture, cut, or penetration to your skin, a tattoo is at risk for infections and disease.

First, make sure you're up to date with your immunizations (especially hepatitis and tetanus shots) and plan where you'll get medical care if your tattoo becomes infected (signs of infection include excessive redness or tenderness around the tattoo, prolonged bleeding, pus, or changes in your skin color around the tattoo).

If you have a medical problem such as heart disease, allergies, diabetes, skin disorders, a condition that affects your immune system, or infections — or if you are pregnant — ask your doctor if there are any special concerns you should have or precautions you should take beforehand. Also, if you're prone to getting keloids (an overgrowth of scar tissue in the area of the wound), it's probably best to avoid getting a tattoo altogether.

Avoiding Infection

It's very important to make sure the tattoo studio is clean and safe, and that all equipment used is disposable (in the case of needles, gloves, masks, etc.) and sterilized (everything else). Some states, cities, and communities set up standards for tattoo studios, but others don't. You can call your state, county, or local health department to find out about the laws in your community, ask for recommendations on licensed tattoo shops, or check for any complaints about a particular studio.

Professional studios usually take pride in their cleanliness. Here are some things to check for:

  • Make sure the tattoo studio has an autoclave (a device that uses steam, pressure, and heat for sterilization). You should be allowed to watch as equipment is sterilized in the autoclave.
  • Check that the tattoo artist is a licensed practitioner. If so, the tattoo artist should be able to provide you with references.
  • Be sure that the tattoo studio follows the Occupational Safety and Health Administration's Universal Precautions. These are regulations that outline procedures to be followed when dealing with bodily fluids (in this case, blood).

If the studio looks unclean, if anything looks out of the ordinary, or if you feel in any way uncomfortable, find a better place to get your tattoo.

What's the Procedure Like?

Here's what you can expect from a normal tattooing procedure:

  • The tattoo artist will first wash his or her hands with a germicidal soap.
  • The to-be-tattooed area on your body will be cleaned and disinfected.
  • The tattoo artist will put on clean, fresh gloves (and possibly a surgical mask).
  • The tattoo artist will explain the sterilization procedure to you and open up the single-use, sterilized equipment (such as needles, etc.).
  • Using the tattoo machine (with a sterile, single-use needle attached), the tattoo artist will begin drawing an outline of the tattoo under your skin.
  • The outline will be cleaned with antiseptic soap and water.
  • Sterile, thicker needles will be installed on the tattoo machine, and the tattoo artist will start shading the design. After cleaning the area again, color will be injected. A new bottle of ink should be opened for each individual.
  • Any blood will be removed by a sterile, disposable cloth or towel.
  • When finished, the area, now sporting a finished tattoo, will be cleaned once again and a bandage will be applied.

Taking Care of a Tattoo

The last step in getting a tattoo is very important — taking care of the tattoo until it fully heals. Follow all of the instructions the studio gives you for caring for your tattoo to make sure it heals properly. Also, keep in mind that it's very important to call your doctor right away if you see or feel any signs of infection such as pain, spreading redness, swelling, or drainage of pus. To make sure your tattoo heals properly:

  • Keep a bandage on the area for up to 24 hours.
  • Avoid touching the tattooed area and don't pick at any scabs that may form.
  • Wash the tattoo with an antibacterial soap (don't use alcohol or peroxide — they'll dry out the tattoo). Use a soft towel to dry the tattoo — just pat it dry and be sure not to rub it.
  • If you don't have an allergy to antibiotic ointment, rub some into the tattoo. Don't use petroleum jelly — it may cause the tattoo to fade.
  • Put an ice pack on the tattooed area if you see any redness or swelling.
  • Try not to get the tattoo wet until it fully heals. Stay away from pools, hot tubs, or long, hot baths.
  • Keep your tattoo away from the sun until it's fully healed.

Even after it's fully healed, a tattoo is more susceptible to the sun's rays, so it's a good idea to always keep it protected from direct sunlight. If you're outside often or hang out at the beach, it's recommended that you always wear a sunscreen with a minimum sun protection factor (SPF) of 30 on the tattoo. This not only protects your skin, but keeps the tattoo from fading.

What Are the Risks?

If you decide to get a tattoo, chances are everything will go as planned. But if disinfection and sterilization steps aren't followed, there are some things you need to be aware of that can go wrong. If you don't go to a tattoo studio or the tattoo studio doesn't follow precautions like using sterilized equipment or if it shares ink between customers, you're putting yourself at risk for getting viral infections such as hepatitis, bacterial skin infections, or dermatitis (severe skin irritation).

Also, some people have allergic reactions to the tattoo ink. And if you already have a skin condition such as eczema, you may have flare-ups as a result of the tattoo.

Serious complications can result if you attempt to do a tattoo yourself, have a friend do it for you, or have it done in any unclean environment. Because tattooing involves injections under the skin, viruses such as HIV and hepatitis B and C can be transferred into your body if proper precautions aren't followed. For this reason, the American Red Cross and some other blood banks require people to wait 12 months after getting a tattoo before they can donate blood.

Tattoo Removal

A lot of people love their tattoos and keep them forever. But others decide a couple of years down the road that they really don't like that rose on their ankle or snake on their bicep anymore. Or maybe you broke up with your boyfriend or girlfriend and no longer want his or her initials on your stomach. What then?

In the past, tattoo removal required surgery, but now there are several other methods that can be used. One common method is laser removal. Some tattoo shops also offer tattoo removal, but it's a better idea to make sure the person doing the removal is a medical doctor. Before you go just anywhere to get your tattoo removed, check with your doctor or contact the American Dermatological Association to find a reputable laser removal specialist in your area.

Although it's called tattoo removal, completely removing a tattoo can be difficult depending on how old the tattoo is, how big the tattoo is, and the types and colors of inks that were used. Removal of the entire tattoo is not always guaranteed. It's best to consult with a dermatologist who specializes in tattoo removal to get your questions answered — such as whether anesthesia is used. The dermatologist can also give you a good idea of how much (if not all) of the tattoo can be removed.

Tattoo removal can be pretty expensive. Depending on factors like the size and design of the tattoo, removal can cost significantly more than the actual tattoo.

The Laser Removal Procedure

Laser tattoo removal usually requires a number of visits, with each procedure lasting only a few minutes. Anesthesia may or may not be used. What happens is the laser sends short zaps of light through the top layers of your skin, with the laser's energy aimed at specific pigments in the tattoo. Those zapped pigments are then removed by your body's immune system.

Removing a tattoo by laser can be uncomfortable and can feel a lot like getting a tattoo. The entire process usually takes several months.

Just like when you get a tattoo, you must look after the wound area after a tattoo is removed. The area should be kept clean, but it shouldn't be scrubbed. Also, it might turn red for a few days and a scab might form. Don't rub or scrub the area or pick at the scab. Let it heal on its own.

Laser tattoo removal is usually effective for the most part, but there can be some side effects. The area can become infected or scarred, and it can also be susceptible to hyperpigmentation, which causes the area where your tattoo used to be to become darker than your normal skin, or hypopigmentation, which causes the area where your tattoo used to be to become lighter than your normal skin color.

So Is It Worth It?

Is getting a tattoo worth the money and hassle? It's up to you. Some people really enjoy their tattoos and keep them for life, whereas others might regret that they acted on impulse and didn't think enough about it before they got one. Getting a tattoo is a big deal, especially because they're designed to be permanent.

If you've thought about it and decided you want a tattoo, make sure you do a little detective work and find a clean, safe, and professional tattoo shop. Also, remember that getting and maintaining a tattoo involves some responsibility — after you leave the tattoo shop, it's up to you to protect and treat it to prevent infections or other complications.

Warts

What Are Warts?

Warts are tiny skin infections caused by viruses of the human papilloma virus (HPV) family. Although children get warts most often, teens and adults can get them, too. Sometimes warts are sexually transmitted and appear in the genital area, but most warts affect the fingers, hands, and feet.

Some people appear to be more susceptible to warts than others. In fact, some people never get them. Doctors aren't really sure why this is and think it may be that some people's immune systems make them less likely to get the virus that causes warts.

The viruses that cause warts are passed from person to person by close physical contact. Having a tiny scratch or cut can make a person more vulnerable to getting warts.

What Are the Signs and Symptoms?

If you find a small, hard bump on your skin that has a rough surface similar to that of a cauliflower, it's probably a wart. Warts can look pink, white, or brown, and can contain tiny spots inside that look like black specks. Warts can affect any part of the skin, but are most often found on the extremities — fingers, hands, and feet.

Warts are usually painless, except for those on the soles of the feet. These are called plantar warts, and if you have one it can feel like walking on a small pebble. Warts on the palms of the hands or soles of the feet may appear level rather than raised.

Sometimes warts can itch or bleed. They may also become infected with bacteria (from scratching or picking) and become red, hot, or tender.

Can I Prevent Warts?

There is no way to prevent warts, but it's always a good idea to wash your skin regularly and well. If you cut or scratch your skin, be sure to use soap and water because open wounds are more susceptible to warts and other infections.

It's also a good idea to wear waterproof sandals or flip-flops in public showers, locker rooms, and around public pools (this also can help protect against other infections, like athlete's foot). If you do have warts, don't rub, scratch, or pick at them or you may spread the virus to another part of your body or cause the wart to become infected.

How Long Before Symptoms Appear?

The length of time between when a person's exposed to the HPV virus and a wart appears varies, but warts can grow very slowly and may take many months to develop.

How Long Do Warts Last?

Warts are different in different people. In time, many warts disappear on their own.

With treatment, warts can usually be removed within a few weeks, but they may come back if the virus causing them stays in the skin.

When Should I Call a Doctor?

Although many warts disappear on their own with time, it's a good idea to show your wart to a doctor, who can recommend a treatment method if you need one.

If you discover a wart on your face or on your genital area, call your doctor. He or she can determine the best treatment for those areas, which are very sensitive.

How Are Warts Treated?

Warts can be treated in various ways, including:

  • Over-the-counter medications contain acids that are applied to the wart. The acids are peeling agents that remove the dead skin cells of the wart and cause the wart to eventually fall off. Over-the-counter treatments shouldn't be used on the face or genitals without consulting a doctor first as some of them may cause damage to the skin.
  • Cryosurgery (pronounced: kry-o-sur-juh-ree) is where a doctor freezes the wart with liquid nitrogen. This treatment is usually done in the doctor's office.
  • Laser surgery may be used for warts that are hard to remove.

Within a few days after treatment by a doctor, a small wart will usually fall off, although you may need more than one treatment. Treatment may take longer for larger warts. Over-the-counter treatments may take longer than the doctor's office treatments, but they can be used as initial treatment on the hands or feet. Your doctor may also tell you to use over-the-counter treatments after you've had an in-office procedure.

What Can I Do to Help Myself Feel Better?

If you have a simple wart on a finger or toe, you can try to remove it with an over-the-counter medication. These include liquids or pads containing medication that work by chemically removing the skin affected by the wart virus.

Because these are strong chemicals, you should follow the directions and use them with care to prevent removing healthy skin. Keep the chemicals away from your eyes, and wash your hands thoroughly after treating the area.

Tips for Taking Care of Your Skin

Sometimes it may seem like your skin is impossible to manage, especially when you wake up and find a huge zit on your nose or a cold sore at the corner of your mouth. The good news is that there are ways to prevent and treat common skin problems — read on for some tips.

Acne

A pimple starts when the pores in the skin become clogged with a type of oil called sebum, which normally lubricates the skin and hair. Acne is common during puberty when hormones go into overdrive, causing the skin to overproduce sebum. Because many oil-producing glands are on the forehead, nose, and chin, this area — the T-zone — is where a person is most prone to pimples.

Here are some tips to help prevent breakouts and clear them up as fast as possible:

  • Wash your face twice a day (no more) with warm water and a mild soap made for people with acne. Gently massage your face with circular motions. Don't scrub. Overwashing and scrubbing can cause skin to become irritated. After cleansing, the American Academy of Dermatology (AAD) recommends applying an over-the-counter (no prescription needed) lotion containing benzoyl peroxide. This will decrease oil and bacteria.
  • Don't pop pimples. It's tempting, but here's why you shouldn't: Popping pimples can push infected material further into the skin, leading to more swelling and redness, and even scarring. If you notice a pimple coming before a big event, like the prom, a dermatologist can often treat it for you with less risk of scarring or infection.
  • Avoid touching your face with your fingers or leaning your face on objects that collect sebum and skin residue like the telephone receiver. Touching your face can spread the bacteria that cause pores to become inflamed and irritated. To keep bacteria at bay, wash your hands before applying anything to your face, such as treatment creams or makeup.
  • If you wear glasses or sunglasses, make sure you clean them frequently to keep oil from clogging the pores around your eyes and nose.
  • If you get acne on your body, try not to wear tight clothes, which don't allow skin to breathe and may cause irritation. You also might want to stay away from scarves, headbands, and caps, which can collect dirt and oil, too.
  • Remove your makeup before you go to sleep. When buying makeup, make sure you choose brands that say "noncomedogenic" or "nonacnegenic" on the label. Throw away old makeup that smells or looks different from when you first bought it.
  • Keep hair clean and out of your face to prevent additional dirt and oil from clogging your pores.
  • Protect your skin from the sun. It may seem like a tan masks acne, but it's only temporary. A tan can cause the body to produce extra sebum, which may worsen your acne, not improve it. Tanning also causes damage to skin that will eventually lead to wrinkles and increase your risk of skin cancer.

If you're concerned about acne, talk to a dermatologist. Dermatologists offer a range of treatments that help to prevent and clear up acne and acne scars. A dermatologist can help you find the treatment method that's best for you and can also give you lots of useful tips for dealing with acne and caring for your skin type. Some salons and spas have trained skin specialists, called estheticians, who can offer advice and skin care treatments.

Sun and Skin

We all know we need to protect our skin from the sun's harmful rays. Of course, it's impossible to avoid the sun — who wants to hide indoors when it feels so great to get outside and be active? And the sun's not all bad, anyway: Sunlight helps our bodies create vitamin D. So follow these tips when you're outdoors to help manage sun exposure:

  • Wear sunscreen with a sun protection factor (SPF) of at least 15, even if it's cloudy or you don't plan on spending a lot of time outdoors. If you sweat a lot or go swimming, reapply sunscreen every 2 to 3 hours (even if the bottle says the sunscreen is waterproof).
  • Choose a sunscreen that blocks both UVA and UVB rays. Look for the words "broad spectrum protection" or UVA protection in addition to the SPF of 15 or greater. Select a sunscreen that says "nonacnegenic" or "noncomedogenic" on the label to help keep pores clear.
  • The sun's rays are strongest between 10:00 AM and 4:00 PM, so make sure you reapply sunscreen frequently and take breaks indoors if you can. If your shadow is longer than you are tall, then it's a safer time to be in the sun (you should still wear sunscreen, though).
  • Apply more sunscreen (with higher SPF) when you're around reflective surfaces like water, snow, or ice.
  • We all know that the sun can damage skin, but did you know it can contribute to eye problems, too? Protect your face and eyes with a hat and sunglasses that provide 100% UV protection.
  • Some medications, such as prescription acne medications or birth control pills, can increase your sensitivity to the sun, so if you're taking medication, increase your sun protection.
  • If you want the glow of a tan, try faking it with self-tanners or salon tanning treatments. Avoid tanning beds, though, because although manufacturers claim that tanning beds are free of UVB rays, they still use harmful UVA rays.

Cold Sores

Cold sores usually show up as tender "pimples" on the lips. They are caused by a type of herpes virus (HSV-1, which most often is not sexually transmitted) so they are contagious from person to person. Once you get this virus it stays in your body, meaning you'll probably get cold sores every now and then throughout your life. Here are ways you can help prevent cold sores from making an appearance (or reappearance if you've had them in the past):

  • Avoid getting cold sores in the first place by not sharing stuff like lip balm, toothbrushes, or drinks with other people who might have cold sores. The virus that causes cold sores is transmitted through the nose (in mucus) and the mouth (in saliva).
  • People who have the virus know that cold sores can flare up from things like too much sun, stress, or being sick. Just one more reason to lather on that suntan lotion, eat well, exercise, and get plenty of sleep!

If you do have a cold sore, here are some tips for keeping yourself comfortable:

  • Take acetaminophen or ibuprofen if the cold sores are painful.
  • Suck on ice pops or cubes to ease pain and keep cold sores cool.
  • Stay away from acidic foods (like oranges, tomatoes, and lemonade) and salty, spicy foods, which can cause irritation.
  • Don't pick at cold sores while you're waiting for them to go away. They may bleed or become infected with bacteria.

Usually, cold sores go away on their own after a week or two. But if you get them frequently or they're a problem, talk to your doctor or dermatologist, who may be able to prescribe medication to alleviate symptoms and shorten the amount of time cold sores last.

Eczema

Eczema is a condition that causes skin to become red, itchy, and dry. If you have eczema, you might notice that you are prone to getting itchy rashes — especially in places like where your elbows and knees bend or on your neck and face. The symptoms of eczema can vary from person to person. Though you can't cure eczema forever, you can take steps to prevent it from flaring:

  • Stay away from things like harsh detergents, perfumed soaps, and heavily fragranced lotions that tend to irritate the skin and trigger eczema.
  • Because water tends to dry out the skin, take short, warm showers and baths. If you're going to have your hands in water for a long time (like when you're washing dishes or your car), try wearing gloves.
  • Soothe your skin with regular applications of a fragrance-free moisturizer to prevent itching and dryness. Creams generally moisturize a bit better and last longer than lotions for most people. Creams work best if applied when the skin is slightly wet, like just after bathing.
  • Be careful which fabrics you wear. Cotton is good because it's breathable and soft. (But if you are exercising, some of the newer synthetic materials actually keep you drier and are better for you than cotton.) Try to stay away from materials like wool or spandex that may cause irritation or allergic reactions.
  • Keep stress in check. Because stress can lead to eczema flares, try activities like yoga or walking after a long day to keep your stress levels low.
  • If you wear makeup, look for brands that are free of dyes and fragrances that can aggravate eczema.

If you're having trouble managing your eczema, talk to a dermatologist, who can suggest ways to better control it.

Other Skin Conditions

Warts are tiny skin infections caused by viruses of the human papilloma virus (HPV) family. There's no way to prevent warts from occurring (other than avoiding contact with people who have them). But if you do get them, don't rub, pick, or scratch them because you can spread the virus and get new warts. Some over-the-counter medications containing special acids can help get rid of warts, but it's always a good idea to see your doctor before trying one. If you find warts in your genital area, you should see your doctor, who can recommend the best treatment method for that sensitive area.

Another type of wart-like viral infection is molluscum contagiosum. (It's not as scary as its name sounds!) Like warts, it can be transmitted through scratching and sexual contact.

Fine white or purplish lines on the skin called stretch marks are pretty common in most teens. Stretch marks are formed when the tissue under your skin is pulled by rapid growth or stretching, like during puberty. Stretch marks usually fade on their own over time. Talk to a dermatologist if you're concerned about them.

Because our skin is the most visible reflection of what's going on in our bodies, people equate healthy skin with beauty. But healthy skin is about more than just good looks; it's essential to our survival. So keep your skin glowing with the right skin care techniques and by eating well and getting lots of exercise.

Why Do I Get Acne?

If you're a teen, chances are pretty good that you have some acne. Almost 8 in 10 teens have acne, along with many adults.

Acne is so common that it's considered a normal part of puberty. But knowing that doesn't always make it easier when you're looking at a big pimple on your face in the mirror. So what is acne, and what can you do about it?

What Is Acne and What Causes It?

Acne is a condition of the skin that shows up as different types of bumps. These bumps can be blackheads, whiteheads, pimples, or cysts. Teens get acne because of the hormonal changes that come with puberty. If your parents had acne as teens, it's more likely that you will, too. The good news is that, for most people, acne goes away almost completely by the time they are out of their teens.

The type of acne that a lot of teens get is called acne vulgaris (the meaning of "vulgaris" isn't as bad as it sounds — it means "of the common type"). It usually shows up on the face, neck, shoulders, upper back, and chest.

The hair follicles, or pores, in your skin contain sebaceous glands (also called oil glands). These glands make sebum, which is an oil that lubricates your hair and skin. Most of the time, the sebaceous glands make the right amount of sebum. As a teen's body begins to mature and develop, though, hormones stimulate the sebaceous glands to make more sebum, and the glands may become overactive. Pores become clogged if there is too much sebum and too many dead skin cells. Bacteria (especially one called Propionibacterium acnes) can then get trapped inside the pores and multiply, causing swelling and redness — the start of acne.

If a pore gets clogged up and closes but bulges out from the skin, you're left with a whitehead. If a pore gets clogged up but stays open, the top surface can darken and you're left with a blackhead. Sometimes the wall of the pore opens, allowing sebum, bacteria, and dead skin cells to make their way under the skin — and you're left with a small, red bump called a pimple (sometimes pimples have a pus-filled top from the body's reaction to the bacterial infection).

Clogged pores that open up very deep in the skin can cause nodules, which are infected lumps or cysts that are bigger than pimples and can be painful. Occasionally, large cysts that seem like acne may be boils caused by a staph infection. That doesn't happen often, though.

Acne Myths

There are a few myths out there about things that cause acne. Acne isn't caused by eating greasy foods like french fries or pizza, chomping on chocolate, or drinking sodas. Some people do find that they notice their breakouts get more severe when they eat too much of a certain food, though. If you're one of them, it's worth trying to cut back on that food to see what happens.

Stress doesn't usually cause acne either (although it can make existing acne worse because stress increases sebum production).

There are also myths about what helps make acne better. Acne isn't really helped by the sun. Although a tan can temporarily make acne look less severe, it won't help it go away permanently — and some people find that the oils their skin produces after being in the sun make their pimples worse.

What Can I Do About Acne?

To help prevent the oil buildup that can contribute to acne, wash your face twice a day with a mild soap and warm water. Don't scrub your face hard with a washcloth — acne can't be scrubbed away, and scrubbing may actually make it worse by irritating the skin and pores. Try cleansing your face as gently as you can.

If you wear makeup or sunscreen, make sure it's labeled "oil free," "noncomedogenic," or "nonacnegenic." This means it won't clog your pores and contribute to acne. And when you are washing your face, be sure you take the time to remove all of your makeup so it doesn't clog your pores.

If you use hair sprays or gels, try to keep them away from your face, as they can also clog pores. If you have long hair that touches your face, be sure to wash it frequently enough to keep oil away. And if you have an after-school job that puts you in contact with oil — like in a fast-food restaurant or gas station, for example — be sure to wash your face well when you get home. It can also help to wash your face after you've been exercising.

Many over-the-counter lotions and creams containing salicylic acid or benzoyl peroxide are available to help prevent acne and clear it up at the same time. You can experiment with these to see which helps. Be sure to follow the instructions exactly — don't use more than you're supposed to at one time (your skin may get too dried out and feel and look worse) and follow any directions to see if you're allergic to it first.

What if I Get Acne Anyway?

Sometimes even though they wash properly and try lotions and oil-free makeup, people get acne anyway — and this is totally normal. In fact, some girls who normally have a handle on their acne may find that it comes out a few days before they get their period. This is called premenstrual acne, and about 7 out of 10 women get it from changes in hormones in the body.

Some teens who have acne can get help from a doctor or dermatologist (a doctor who specializes in skin problems). A doctor may treat the acne with prescription medicines. Depending on the person's acne, this might mean using prescription creams that prevent pimples from forming, taking antibiotics to kill the bacteria that help create pimples, or if the acne is severe, taking stronger medicines such as isotretinoin, or even having minor surgery. Some girls find that birth control pills help to clear up their acne.

If you look in the mirror and see a pimple, don't touch it, squeeze it, or pick at it. This might be hard to do — it can be pretty tempting to try to get rid of a pimple. But when you play around with pimples, you can cause even more inflammation by poking at them or opening them up. Plus, the oil from your hands can't help! More important, though, picking at pimples can leave tiny, permanent scars on your face.

Monday, July 13, 2009

Stretch Marks

Stretch marks are a normal part of puberty for most girls and guys. When a person grows or gains weight really quickly (like during puberty), that person may get fine lines on the body called stretch marks. Stretch marks happen when the skin is pulled by rapid growth or stretching. Although the skin is usually fairly elastic, when it's overstretched, the normal production of collagen (the major protein that makes up the connective tissue in your skin) is disrupted. As a result, scars called stretch marks may form.

If you're noticing stretch marks on your body, you're not alone. Most girls and women have stretch marks, which tend to show up on the breasts, thighs, hips, and butt. Many women get them during pregnancy. And while they're more common in girls, guys can get stretch marks, too.

People who are obese often have stretch marks. Bodybuilders are prone to getting stretch marks because of the rapid body changes that bodybuilding can produce. Stretch marks also may occur if a person uses steroid-containing skin creams or ointments (such as hydrocortisone) for more than a few weeks, or has to take high doses of oral corticosteroids for months or longer.

At first, stretch marks may show up as reddish or purplish lines that may appear indented and have a different texture from the surrounding skin. Fortunately, stretch marks often turn lighter and almost disappear over time. But the fact that stretch marks usually fade and become less noticeable over time can be little consolation if you plan to spend most of your summer in a bathing suit.

Making Them Less Noticeable

Here are some things to consider if you want to make stretch marks less noticeable:

  • Some people find that sunless tanning treatments (both over-the-counter lotions and sprays and in-salon types of treatments) can help cover up stretch marks. This doesn't work for regular tanning or tanning beds, though, because stretch marks themselves are less likely to tan. And as everyone knows, the sun and tanning beds do more harm than good when it comes to the long-term health of your skin.

    You also can buy body makeup matched to the tone of your skin that can make stretch marks all but invisible. Although some manufacturers make these cover-up products water-resistant, makeup may not be the best solution if you'll be spending a lot of time in the water.
  • Speaking of pool or beach time, the good news is that current fashion favors many styles of bathing suits that also just happen to hide stretch marks. "Boy short" style suits (popular with many athletes because they don't ride up when a person moves) work well for hiding stretch marks on the buttocks and upper thighs. And because many swimmers prefer high-neck bathing suits, which can hide stretch marks in the chest area, there are usually lots of styles to choose from.
  • Although there are tons of creams and other skin products on the market that claim to eliminate stretch marks, the truth is that most are ineffective and often costly. You can't make stretch marks go away entirely without the help of a dermatologist (a doctor who specializes in treating skin problems) or plastic surgeon. These doctors may use one of many types of treatments — from actual surgery to techniques such as microdermabrasion and laser treatment — that reduce the appearance of stretch marks.

    These techniques are expensive and are not usually recommended for people in their teen years because they are not finished growing and their stretch marks will probably diminish over time anyway.

Myths About Acne

Do you think you already know all there is to know about acne? You may be surprised that some of the things you've heard about acne — like what causes it and how to deal with it — aren't actually true. Keep reading to find out some fast facts.

Myth #1: Tanning clears up skin.

Fact: Although a tan may temporarily mask acne, the sun can make the skin dry and irritated, leading to more breakouts in the future. In fact, there's no link between sun exposure and acne prevention, but the sun's rays can cause premature aging and skin cancer. Always protect your skin by choosing a sunscreen of at least SPF (sun protection factor) 15 that says noncomedogenic or nonacnegenic on the label, which means it won't clog pores.

Myth #2: Chocolate and greasy foods cause acne.

Fact: Although eating too many sugary, high-fat foods is never a good idea, studies show that no specific food has been proven to cause acne. Every individual is different, though. Some people notice their breakouts are worse after eating certain foods — and these foods are different depending on the person. For example, some people may notice breakouts after eating chocolate, while others are fine with chocolate but notice they get breakouts after drinking too much coffee. If that's the case for you, it can help to cut back on that food and see if it makes a difference.

Myth #3: The more you wash your face, the fewer breakouts you'll have.

Fact: Although washing your face helps to remove dirt and oil from your pores, washing too much can lead to dryness and irritation, causing more breakouts. Also, avoid scrubbing your face, which can irritate the skin. As a general rule, wash your face twice a day with mild soap and water in a circular motion and gently pat dry when you're done.

Myth #4: Popping pimples will help them go away faster.

Fact: Popping a pimple may make it seem less noticeable temporarily, but popping can cause it to stay around longer. By squeezing pimples and zits, you can actually push bacteria, dead skin cells, and oil further into the skin, causing more swelling and redness — and sometimes causing a red or brown mark or scar to form. Sometimes marks can last for many months and true scars (dents and pits) will last forever.

Myth #5: Don't wear makeup if you want clear skin.

Fact: As long as you choose cosmetics that are nonacnegenic or noncomedogenic, they shouldn't cause breakouts. In fact, some concealers now contain benzoyl peroxide or salicylic acid, which help to fight acne. You can also try tinted benzoyl peroxide creams that hide pimples while helping treat them.

If you've had moderate to severe acne, though, talk to your doctor or dermatologist about the best cosmetics to use — he or she may recommend avoiding cosmetics altogether or only using certain brands so you're acne isn't aggravated.

And even if a product is labeled nonacnegenic or noncomedogenic, you should stop using it and talk to your doctor if you notice that it's irritating your skin or seems to cause breakouts.

Myth #6: If you keep getting breakouts, it helps to use more acne medication until the breakouts stop.

Fact: Because acne medication contains drying agents like benzoyl peroxide and salicylic acid, using too much medication may cause overdrying, leading to irritation and more blemishes.

If over-the-counter acne medication doesn't seem to work on your acne, it's a good idea to talk to your doctor or dermatologist. Also, if you're taking a prescription acne medication, make sure you follow your doctor's instructions — some medications may take up to 8 weeks to make a significant difference.

Shaving

You looked different this morning. While brushing your teeth, you gazed into the mirror and there it was — hair sprouting all over your face. It's definitely cool, but you're not quite sure whether you want to grow that big bushy beard and moustache just yet. It's time to start shaving (as if you didn't have enough things to do first thing in the morning).

Actually, shaving's no big deal once you get the hang of it. It's quick, easy, and if you follow the tips outlined below, absolutely painless.

Razor Basics

Shaving is simply using a razor to remove the tip of the hair shaft that has grown up through the skin. Razors come in a bunch of different forms. There are standard razors that are either completely disposable or have a disposable blade that needs to be replaced regularly, and there are electric razors.

Using an electric razor can be quick and convenient, but many guys find that it may not give the close and accurate shave that a standard razor can. Although using an electric razor is pretty easy (just turn it on and move it around your face), shaving with a standard razor has a few rules to follow.

When you're using a standard razor, the most important item you need is a clean, sharp blade (the best razors have at least two blades and a movable head). Try to avoid shaving with a dull or blunt blade. At best, a dull blade will give you an uneven shave and leave you with redness, blotches, and patches of unshaven hair on your face and neck. At worst, a dull blade will remove a fair amount of your skin along with the hair! Don't be afraid of changing the blade (or the razor, if you're using the disposable kind) often. You'll be glad you did.

Shaving scrapes natural oils off your face, so the next most important item is some sort of shaving gel to keep your skin from becoming too dry and reduce friction from the razor. Pick a gel you think sounds good and give it a try. If you choose a shaving gel that is mentholated (it will say that on the label), be aware that menthol can sometimes cause a slight reaction with some types of skin and may result in red blotches. If this happens to you, don't worry. Just switch to a non-mentholated shaving cream.

Ouch!

Cuts and nicks are a part of shaving. They won't happen to you every time, but they will happen. When you nick or cut yourself, be sure to grab a clean tissue or cloth and apply direct pressure to stop the bleeding. If you've got a zit or a cut right in the middle of the area you're going to shave, it's a good idea to drop the standard razor for a while and use an electric razor or give shaving a break altogether for a few days.

Also, some guys might get ingrown hairs after shaving, in which the hair grows back into the skin. It can pierce the hair follicle, which in turn causes razor bumps. Called folliculitis, this condition can sometimes be handled by using a special safety razor, but this doesn't always work for every guy. If you experience folliculitis, talk to a dermatologist about the best way to remove your beard and moustache.

How to Shave

Before you begin, be sure to remember to rinse your razor after every few strokes. That way, the razor is cleared of any shaving cream or hair that might clog it up. Also, because the hair on different parts of your face grows in different directions, always try to shave in the direction your hair is growing (shaving against the direction your hair is growing can cause razor burn, redness, and rashes).

Now let's shave:

  • First, wet your face with hot or warm water. This makes the hair on your face softer and opens your skin's pores, getting you ready for a closer and easier shave. Even better, try to shave right after you get out of the shower.
  • Squirt some shaving gel into your hand, then apply it to your face, making sure to cover the sides of your face, chin, mouth area (around your lips), neck, and throat.
  • Press the razor to the area you want to shave (it's a good idea to start with the sides of your face as they're easy to handle). Use short, slow strokes and remember to move the razor in the direction your hair is growing. Don't press too hard but don't be too gentle. Find the right touch by making sure the razor is cutting the hair and not your skin. You'll know if you're being too gentle if you only remove the shaving cream and the hair is still there.
  • When the sides of your face are finished, move on to the more tricky spots. For areas like your upper lip/moustache area, bottom lip/chin area, and neck/throat area, you'll have to work a little. Try to stretch your skin a bit to make a flat surface, and glide the razor over those tricky areas.
  • When you're finished, rinse your clean, smooth face with cold water. If you want to, put on some aftershave. Depending on how fast you grow that beard and moustache, repeat the entire process in 1 to 3 days.

Melanoma

Kristin was worried. After a summer spent in the sun, she noticed a strange-looking mole on her shoulder. Since she'd just read an article about how more people in their teens and twenties are getting skin cancer, she decided to get the mole checked out.

Kristin made a doctor's appointment, but continued to worry in the days before the exam. What if it was cancer? Why hadn't she been more sensible about the sun? Fortunately, her mole was not cancerous. Her doctor reassured her that she'd done the right thing by having it checked — skin cancer is a lot easier to treat if it's caught early.

Although there are several different types of skin cancer, most don't become life-threatening because they aren't likely to spread to other parts of the body. Unfortunately, melanoma is different. If it's not caught early, melanoma can spread from the skin to other organs — often with deadly results.

If there's any good news about melanoma, it's this: You have the power to substantially lower your risk of getting it. All it will cost you is a little extra time spent protecting yourself from the sun and paying attention to the moles on your skin.

What Is Melanoma?

Melanoma is a type of cancer that begins in the melanocytes. Melanocytes are skin cells that produce melanin, the pigment that gives skin its color.

Melanocytes commonly cluster together to form skin growths called moles (or "nevi," in medical terms). Most people have several moles — maybe even dozens — and they usually don't cause any problems. Moles may be flat or raised, large or small, light or dark, and can appear anywhere on our bodies.

Sometimes, though, melanocytes can malfunction. Because of a genetic change, they can begin growing out of control, sticking together to form lesions or tumors, crowding out healthy cells, and damaging surrounding tissue. This condition is known as cancer.

Melanoma that's caught early, when it's still on the surface of the skin, can be cured. But if melanoma is ignored or untreated, it can grow downward into the skin until it reaches the blood vessels and lymphatic system. These two systems can act like a highway for the cancer cells, allowing them easy access to distant organs like the lungs or the brain. That's why early detection is so important.

How Do People Get It?

How does a normal melanocyte become malignant (cancerous)? Researchers believe it's probably a combination of genes and the things we do, like tanning.

One of the most important contributors to melanoma is ultraviolet (UV) sun damage. Cells that have been damaged — particularly by short bouts of bad, blistering sunburns during childhood or regular tanning bed use as a teen or young adult — are more likely to become cancerous over time.

The jury is still out, but some experts think that factors like the thinning of the ozone layer or clothing styles that expose more skin also may contribute to a person's risk of skin cancer. It's also thought that, as people live longer and become more are aware of the disease, more cases of skin cancer are naturally going to be diagnosed. But more likely today's melanoma rates have as much to do with lingering misconceptions about tanning from generations ago.

Back in your parents' and grandparents' day, most people (including doctors) thought it was safe and even healthy to lather up with oil and tan as much as you wanted — just as they thought it was OK to smoke in hospital rooms, which seems crazy now! Even tanning beds and sun lamps were touted as being safer than the sun when they first became popular in the 1980s.

Today we certainly know better. Experts know that certain risk factors increase a person's chance of developing melanoma, including:

  • a fair complexion (light skin that freckles or burns easily, blue eyes, or blond or red hair)
  • multiple moles (typically more than 25)
  • UV exposure (whether from the sun or a tanning bed)
  • a history of frequent or severe sunburns
  • a relative with melanoma or a family history of irregular moles
  • age (older people are still at greater risk)
  • a previous melanoma (moles typically don't grow back after being removed, but a person who's had melanoma once is more likely to have a recurrence somewhere else)

Although it's less likely, you can still get melanoma even if you're dark skinned, young, and have no family history. It appears that behavior — too much sun exposure and not enough skin protection — can override the other risk factors.

How Do People Know They Have It?

Many melanomas start out as a mole or a bump on the skin. Of course, not every mole is cancerous — far from it. What's more telling is whether a mole has undergone any kind of recent change, whether in size, shape, or color.

That's why it's important to take a mental snapshot of your skin — kind of like a mole roadmap — so you'll know what's normal for you. With that as a baseline, you'll be able to spot any changes early. Keep the ABCDE rule in mind when checking your moles:

  • A for asymmetry: If you were to cut the mole down the middle, would the left and the right sides look different?
  • B for border: Are the edges blurry and undefined? Does it appear to be spreading sideways?
  • C for color: Does the mole look darker or lighter than usual, or does it have an area of new color — perhaps black, blue, purple, red, or white?
  • D for diameter: Is the mole larger than the eraser on a pencil top?
  • E for elevation: Does it have a raised or bumpy surface?

If you answered yes to any of these questions about an existing mole — or if you have a new mole, or one that's started to itch or bleed — see your doctor right away.

The most common places for melanoma to occur are on the torso, head, and neck for men, and the lower legs for women. African Americans are more likely to get melanoma under the nails, or on the palms and soles of the feet.

If a doctor suspects melanoma, he or she will perform a biopsy — removing all or part of the mole in question and examining its cells under a microscope. Not only can a biopsy tell if the cells are cancerous, it can also be used to tell how deeply cancer has penetrated the skin and predict its risk of spreading. Knowing these details will help the doctor map out a treatment plan.

How Do Doctors Treat It?

 What doctors do about melanoma depends on how big and deep the cancerous area (known as a "lesion") is, what part of the body it's on, and whether it has spread to other parts of the body.

Treatment for melanoma typically includes surgery to remove the lesion. If doctors suspect that cancerous cells may have traveled to other areas of the body, treatment may also include radiation (high-energy X-rays that are directed at tumors) or chemotherapy (cancer-fighting drugs). Doctors may also use immunotherapy (also known as biologic therapy), a treatment that stimulates the body's own immune system to fight cancer cells, alongside these other treatments.

How Can You Prevent It?

Although you can't control how fair your skin is or whether you have a relative with cancerous moles, there are several things you can do to lower your risk of developing melanoma. The most important is limiting your exposure to the sun. Take these precautions:

  • Avoid the strongest sun of the day — between 10 AM and 4 PM.
  • Use broad-spectrum sunscreen (SPF 15 or more) whenever you're in the sun.
  • Wear a wide-brimmed hat and cover up with long, loose cotton clothing if you burn easily.
  • Stay out of the tanning salon. The risk of developing melanoma is eight times greater among people who use tanning beds regularly.

Also, be sure to check your moles often (you may need to ask a friend to help with those hard-to-reach areas, like your back and scalp). Keep dated records of each mole's location, size, shape, and color, and don't wait to have anything suspicious checked out.

Not all skin cancer is melanoma, but every case of melanoma is serious. So now that you know more about it, take responsibility for protecting yourself and do what you can to lower your risk.

Is Tanning Making Me Itch?

 

Sunday, July 12, 2009

Cold Sores (HSV-1)

 

Neal knew something weird was going on. A few days before, his lip started tingling and felt a little numb. He didn't pay much attention to it then, but now there was a certain throbbing something on his lip and it wasn't pretty. At first Neal thought it was a zit because it was red and tender, but then it blistered and opened up. Neal had a cold sore.

Maybe you've heard of a fever blister — a cold sore is the same thing. They're pretty common and lots of people get them. So what exactly are cold sores and what causes them?

What's a Cold Sore?

Cold sores, which are small and somewhat painful blisters that usually show up on or around a person's lips, are caused by the herpes simplex virus-1 (HSV-1). But they don't just show up on the lips. They can sometimes be inside the mouth, on the face, or even inside or on the nose. These places are the most common, but sores can appear anywhere on the body, including the genital area.

Genital herpes isn't typically caused by HSV-1; it's caused by another type of the herpes simplex virus called herpes simplex virus-2 (HSV-2) and is spread by sexual contact. But even though HSV-1 typically causes sores around the mouth and HSV-2 causes genital sores, these viruses can cause sores in either place.

What Causes a Cold Sore?

HSV-1 is very common — if you have it, chances are you picked it up when you were a kid. Most people who are infected with the herpes simplex virus got it during their preschool years, most likely from close contact with someone who has it or getting kissed by an adult with the virus.

Although a person who has HSV-1 doesn't always have sores, the virus stays in the body and there's no permanent cure.

When someone gets infected with HSV-1, the virus makes its way through the skin and into a group of nerve cells called a ganglion (pronounced: gang-glee-in). The virus moves in here, takes a long snooze, and every now and then decides to wake up and cause a cold sore. But not everyone who gets the herpes simplex virus develops cold sores. In some people, the virus stays dormant (asleep) permanently.

What causes the virus to "wake up" or reactivate? The truth is, no one knows for sure. A person doesn't necessarily have to have a cold to get a cold sore — they can be brought on by other infections, fever, stress, sunlight, cold weather, hormone changes in menstruation or pregnancy, tooth extractions, and certain foods and drugs. In a lot of people, the cause is unpredictable.

Here's how a cold sore develops:

  • The herpes simplex virus-1, which has been lying dormant in the body, reactivates or "wakes up."
  • The virus travels toward the area where the cold sore decides to show up (like a person's lip) via the nerve endings.
  • The area below the skin's surface, where the cold sore is going to appear, starts to tingle, itch, or burn.
  • A red bump appears in the area about a day or so after the tingling.
  • The bump blisters and turns into a cold sore.
  • After a few days, the cold sore dries up and a yellow crust appears in its place.
  • The scab-like yellow crust falls off and leaves behind a pinkish area where it once was.
  • The redness fades away as the body heals and sends the herpes simplex virus back to "sleep."

How Do Cold Sores Spread?

Cold sores are really contagious. If you have a cold sore, it's very easy to infect another person with HSV-1. The virus spreads through direct contact — through skin contact or contact with oral or genital secretions (like through kissing). Although the virus is most contagious when a sore is present, it can still be passed on even if you can't see a sore. HSV-1 can also be spread by sharing a cup, eating utensils, or lip balm or lipstick with someone who has it.

In addition, if you or your partner gets cold sores on the mouth, the herpes simplex virus-1 can be transmitted during oral sex and cause herpes in the genital area.

Herpes simplex virus-1 also can spread if a person touches the cold sore and then touches a mucous membrane or an area of the skin with a cut on it. Mucous membranes are the moist, protective linings made of tissue that are found in certain areas of your body like your nose, eyes, mouth, and vagina. So it's best to not mess with a cold sore — don't pick, pinch, or squeeze it.

Actually, it's a good idea to not even touch active cold sores. If you do touch an active cold sore, don't touch other parts of your body. Be especially careful about touching your eyes — if it gets into the eyes, HSV-1 can cause a lot of damage. Wash your hands as soon as possible. In fact, if you have a cold sore or you're around someone with a cold sore, try to wash your hands frequently.

If they aren't taken care of properly, cold sores can develop into bacterial skin infections. And they can actually be dangerous for people whose immune systems are weakened (such as infants and people who have cancer or HIV/AIDS) as well as those with eczema. For people with any of these conditions, an infection triggered by a cold sore can actually be life threatening.

How Are Cold Sores Diagnosed and Treated?

Cold sores normally go away on their own within 7 to 10 days. And although no medications can make the infection go away, prescription drugs and creams are available that can shorten the length of the outbreak and make the cold sore less painful.

If you have a cold sore, it's important to see your doctor if:

  • you have another health condition that has weakened your immune system
  • the sores don't heal by themselves within 7 to 10 days
  • you get cold sores frequently
  • you have signs of a bacterial infection, such as fever, pus, or spreading redness

To make yourself more comfortable when you have cold sores, you can apply ice or anything cool to the area. You also can take an over-the-counter pain reliever, such as acetaminophen or ibuprofen.