Plantar fasciitis (PLAN-ter fash-ee-EYE-tus) is pain and inflammation on the bottom of the foot and heel from too much pressure on the foot. It tends to happen in kids and teens who do a lot of ...

Rumination syndrome happens when just-swallowed food comes back up into the mouth from the stomach. When this happens, a person chews and swallows the food again or spits it out. Rumination syndrome ...

What Is Hypotonic Cerebral Palsy? Cerebral palsy (CP) affects muscle movement and control. People with CP have it for life. Hypotonic CP is rarer than other types of CP. In rare cases, CP happens ...

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 ...

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 ...

As you've probably noticed, puberty comes with all kinds of changes — including the way your body looks and even the way you might think it smells. These changes are a normal part of becoming a woman, ...

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!

What Is an Intraventricular Hemorrhage? An intraventricular hemorrhage (in-treh-ven-TRIK-yeh-ler HEM-er-idge) is bleeding in and around the brain's ventricles. The ventricles are spaces in the brain ...

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 ...

Some babies are born with a condition called Goldenhar syndrome. It can cause incomplete development of bones in the face, affecting the ears, nose, soft palate, lips, and jaw. Usually, this happens ...

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 ...

People who have symptoms of COVID-19 or who test positive for it (even without symptoms) should stay home and away from others to prevent spreading the infection. This is known as isolation. Keeping ...