Kids really shouldn't have coffee or tea. The main reason is because these drinks often have caffeine (say: KA-feen). Caffeine is an addictive drug, and it can be harmful for kids and teens. Even ...

Forearm crutches are devices that give support to the forearms to help a person stand and walk. Are Forearm Crutches Right for My Child? Children ages 8 and older who can walk by themselves but have ...

It’s normal for people to masturbate (touch or rub their own genitals because they like the way it feels). Some people do it to relieve stress or tension. It’s nothing to be ashamed of or embarrassed ...

How Does Air Enter the Respiratory System? Air enters the respiratory system through the nose or the mouth. If it goes in the nostrils (also called nares), the air is warmed and humidified. Tiny hairs ...

Herd immunity is the idea that when many people are immune to (protected from) a contagious infection, it's harder for that infection to spread in a community. Antibody shots against specific germs ...

Earaches are common in kids and can have many causes. Here’s why they happen and what to do when your child complains of ear pain. Give acetaminophen or ibuprofen as needed to ease pain (check the ...

How much do you know about your brain? Find out by taking this quiz!

Can I shave my pubic hair? Is it safe? Shaving is one way to remove pubic hair. It is fairly inexpensive, and you can do it yourself. Go slowly, pulling skin taut before running the razor over the ...

Many things can lead to hearing loss, but often, no cause is found. Hearing loss is more likely if a child: Some hearing problems come on gradually after birth or show up later in life. If you are ...

I have lots of little bumps (almost like goosebumps or whiteheads) on my penis. Is this a sign that something is wrong? If you've never had sex, little white bumps on the shaft of the penis may be ...

What Does the Heart & Circulatory System Do? If you've ever wondered how your heart works, this movie has the answer. And special thanks to the Fred J. Brotherton Charitable Foundation for supporting ...

Carbohydrates (car-bo-HI-drates), often called carbs, are one of the three main nutrients in food (along with fat and protein). The body breaks carbohydrates down into sugars — the major source of ...