Find out the answer to this personal question!

Why do people shave? How do they do it? Read this article for the scoop on shaving.

If you're noticing hair on your legs, you might want to start shaving. When do most girls start?

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

Acne - also called pimples or zits - is a perfectly normal part of growing up. Learn more in this article for kids.

Getting a period is a natural part of becoming a woman. Find out more in this article for kids.

Voice cracking? Clothes don't fit? Puberty can be a confusing time, but learning about it doesn't have to be. Read all about it in this article for kids.

Body mass index (BMI) is a calculation that uses your height and weight to estimate how much body fat you have. BMI, although not a perfect method for judging someone's weight, is often a good way to check on how a kid is growing.

On the way to becoming a man, a boy's body will go through a lot of changes, including your body growing bigger, your voice changing, and hair sprouting everywhere. Find out more.

Braces are a fact of life for many kids. Find out how they work and how to take care of them.

Girls grow breasts as they develop and mature. And once a girl has breasts, she probably will want to wear a bra. Find out more in this article just for kids.

Kids who are getting older might think about changing their hairstyle. Find out more about hair, haircuts, and styles in this article.

How do you like your height? Check out this article if you feel too tall or too short.

Lots of girls worry what to do if they get their periods at school. Find out more in this article for kids.

Everyone grows and matures differently. Usually, this is totally normal. A growth disorder, however, means that a kid has abnormal growth - for example, growing a lot slower or a lot faster than other kids the same age.

When you're growing up, lots of changes happen and everyone wonders: Am I normal?

Lots of kids are interested in piercing their ears - or just one of them.

Why do people shave? How do they do it? Read this article for the scoop on shaving.

Learning how to take care of your body is part of growing up. Here's what to do to keep yourself clean and healthy.

Learning how to take care of your body is part of growing up. Here's what you need to do to stay healthy and clean.

Meet Jemma and her friends in The Pink Locker Society. It's a book series and website for girls curious about growing up. Great advice about periods, bras, and boys!

Retainers are really common. In fact, most kids have to wear a retainer for at least a little while after getting their braces taken off. Find out more.

It's normal to be a little worried or anxious about getting your period. Find out more in this article for kids.

Your hard-working feet sometimes start stinking. Find out why in this article for kids.

Some people say toothpaste will clear up a pimple. Does it work or will it make the pimple worse? Let's find out.

As you get older, your body changes. This is called puberty. Here's what to expect.

Both boys and girls experience voice changes as they grow older, but it's the boys that will notice the biggest difference. Find out more in this article for kids.

On the way to becoming a man, a boy's body will go through a lot of changes, including your body growing bigger, your voice changing, and hair sprouting everywhere. Find out more.

Boys might feel embarrassed if they get hurt or have a health problem "down there." Find out more in this article for kids.

Kids might wish for bigger muscles, but that kind of grown-up muscle isn't possible until a kid is older. Find out more in this article for kids.

Learning how to take care of your body is part of growing up. Here's what to do to keep yourself clean and healthy.

Where's your Adam's apple? Do you even have one? Find out in this article for kids.

As you get older, your body changes. This is called puberty. Here's what to expect.

Both boys and girls experience voice changes as they grow older, but it's the boys that will notice the biggest difference. Find out more in this article for kids.

Girls grow breasts as they develop and mature. And once a girl has breasts, she probably will want to wear a bra. Find out more in this article just for kids.

Find out the answer to this personal question!

Find out the answer to this personal question!

Find out the answer to this personal question!

Find out the answer to this personal question!

Find out the answer to this personal question!

Find out the answer to this personal question!

Just as our bodies grow and mature, so do our feelings. Having a crush on someone is one sign that you're growing up. It can be fun - and sometimes disappointing.

Why do girls seem to like mushy stuff - like Valentine's Day - more than boys? Find out more in this article for kids.

What's it like to have a crush? Hear what real kids had to say.

If you've ever felt embarrassed because you have a crush on someone, you're not alone. Lots of kids say they have turned bright red over the same issue. Find out more in this article for kids.

Learn the answer to this personal question!

Find out the answer to this personal question!

Do you have a boyfriend or girlfriend? Find out when most kids start "going out" and what that means.

Do you know how beer and other alcoholic drinks affect the body and mind? Find out in this article for kids.

You love your mom and dad, but what if they smoke? Find out how you can help them be healthier.

What do kids think about drinking alcohol? KidsHealth wanted to know, so we asked 690 kids ages 9 to 13.

Everyone knows tobacco is unhealthy, but what do kids think about it? We asked 1,433 kids to give us their opinions.

Drugs are chemicals that change the way a person's body works. Some drugs help you feel better, but drugs also can harm you. Learn more in this article for kids.

Cocaine and crack are dangerous drugs that produce a fast, intense high. Find out more in this article for kids.

Depressants are a dangerous drug if used the wrong way. Find out more in this article for kids.

Ecstasy is a dangerous drug that can cause hallucinations. Read more about this drug in our article just for kids.

GHB, gamma hydroxybutyrate, is a popular club drug that can be deadly. Learn more about the dangers of GHB in this article for kids.

Heroin is a very addictive and dangerous drug. Learn more in this article for kids.

Inhalants such as glue are sniffed or huffed to give the user a high. Doing this even once can kill you. Learn more in this article for kids.

LSD is a dangerous hallucinogenic drug. Find out more in this article for kids.

Marijuana is the most widely used illegal drug in the United States. Get the facts about it in this article for kids.

Methamphetamines are a dangerous kind of drug that speeds up a person's body and brain. Learn more in this article for kids.

Girls have lots of questions about puberty and growing up. Find all the answers here!

As you get older, your body will change -- this is part of growing up. Here's what to expect.

Getting a period is a natural part of becoming a woman. Find out more in this article for kids.

Girls grow breasts as they develop and mature. And once a girl has breasts, she probably will want to wear a bra. Find out more in this article just for kids.

Kids who are getting older might think about changing their hairstyle. Find out more about hair, haircuts, and styles in this article.

Lots of girls wait for their periods to start, but do they ever stop? Find out in this article for kids.

Girls have lots of questions about periods. Here are five good ones - and the all-important answers!

Lots of girls worry what to do if they get their periods at school. Find out more in this article for kids.

When a girl gets her period, she'll need some supplies. Find out more in this article for kids.

Cramps can put a crimp in a girl's daily routine. Find out what period cramps are and how to handle them.

Lots of kids are interested in piercing their ears - or just one of them.

Learning how to take care of your body is part of growing up. Here's what you need to do to stay healthy and clean.

Meet Jemma and her friends in The Pink Locker Society. It's a book series and website for girls curious about growing up. Great advice about periods, bras, and boys!

Girls have lots of questions about the body changes of puberty, especially about breasts and first periods. Watch this video to get some answers!

Having vaginal discharge is a normal part of puberty for girls.

It's normal to be a little worried or anxious about getting your period. Find out more in this article for kids.

Getting a period is a natural part of becoming a woman. Find out more in this article for kids.

Lots of girls wait for their periods to start, but do they ever stop? Find out in this article for kids.

Girls have lots of questions about periods. Here are five good ones - and the all-important answers!

Lots of girls worry what to do if they get their periods at school. Find out more in this article for kids.

When a girl gets her period, she'll need some supplies. Find out more in this article for kids.

Cramps can put a crimp in a girl's daily routine. Find out what period cramps are and how to handle them.

It's normal to be a little worried or anxious about getting your period. Find out more in this article for kids.

A backpack is an essential item for a kid in school, but they can cause injuries. Find out how to prevent your backpack from becoming a real pain.

No one likes a bully. Find out how to handle them in this article for kids.

Writing is a skill you learn over time. Find out how your body and mind does this complicated task and how to get better at it.

Homework, homework, homework. How do you get it done? Get some tips in this article for kids.

Lots of girls worry what to do if they get their periods at school. Find out more in this article for kids.

There's a lot of "new" in the first day of school. New teachers, new friends, new shoes, new notebooks, and sometimes, a new school. Find out more about going back to school in this article for kids.

If you find yourself overwhelmed when choosing a book, check out these 5 simple steps to picking a book you'll like.

Lunch is a great part of the school day. Find out why what you eat can rev you up - or slow you down - for the afternoon ahead.

Do you know anyone who has repeated a grade? Find out why this happens in this article for kids.

Time to take a study break! Stretch out, unwind, and refresh so you can get back to your homework.

Everyone has a bad day at school once in a while, but some kids really don't like school. Read this article for kids to find out more.

Yoga uses calming breathing and feel-good stretches to relax you. Find out more and give it a try.

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

Acne - also called pimples or zits - is a perfectly normal part of growing up. Learn more in this article for kids.

Some people say toothpaste will clear up a pimple. Does it work or will it make the pimple worse? Let's find out.

Child abuse is never OK. Find out more in this article for kids.

Have you ever thought of running away? It can be a dangerous decision. Find out more in this article for kids.

We wanted to know what kids have to say about weight problems, so we asked more than 1,000 boys and girls. Find out what they said.

This article is for you if you IM and like to create your own characters in virtual worlds. Find out about your online identity and how to protect it.