How Does the Skin Work? What Does Skin Do? You couldn't live without the skin you're in. Find out what's going on under the surface in the skin video.

Kids with apraxia of speech have trouble getting their tongue, lips, and jaw to move correctly for talking. They know what they want to say but can't say the sounds, syllables, and words. By ...

Dentistry (DEN-teh-stree) is the medical care that prevents and treats diseases and conditions affecting the mouth and teeth. A dentist is a doctor who studies, diagnoses, and treats mouth and teeth ...

We see and hear about hearts everywhere. A long time ago, people even thought that their emotions came from their hearts, maybe because the heart beats faster when a person is scared or excited. Now ...

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

An erection is when the penis gets hard because sponge-like tissue in it fills with blood. Erections tend to make the penis get bigger and stand away from the body. Erections can go away on their own ...

From your nose to your toes, do you know how the body works? Take these quizzes to find out!

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

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 ...

Nighttime feedings may be over, but you might still be struggling to get your toddler to sleep. Learn how to instill good sleep habits early so your toddler can sleep well.

Most blood tests take only a few minutes. They’re done at some doctor’s offices, and at community labs, diagnostic centers, and hospitals. A doctor, nurse, or phlebotomist (fleh-BOT-eh-mist, someone ...

Girls have lots of questions about the body changes of puberty. When will my breasts grow? What's the "normal" age to get your first period? Watch this video and find out!