Many things can cause dizziness: Lightheadedness is often the result of a drop in blood pressure (orthostatic hypotension) or not enough blood flow from the heart. Heart problems, stroke, internal ...

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 ...

¿Qué hacen los cartílagos de crecimiento? Los cartílagos de crecimiento son una de las formas en las que crecen los huesos. En general, cada hueso largo tiene dos cartílagos de crecimiento. Estos ...

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!

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 ...

Both the brain and the spinal cord are protected by bone: the brain by the bones of the skull, and the spinal cord by vertebrae, a set of ring-shaped bones. They're both cushioned by layers of ...

For info about your changing body and mind and the kinds of issues that older kids face, this is the place.

In children, COVID-19 can be a mild illness, and sometimes they have no symptoms at all. But some babies and children have gotten very sick from the virus, sometimes weeks after becoming infected.

Flat feet are feet that do not have an arch. The middle of the foot touches the ground. Feet with no arches is the main sign of flat feet. Sometimes, flat feet can cause foot, ankle, or knee pain.

A bully can turn something like going to the bus stop or recess into a nightmare for kids. Bullying can leave deep emotional scars. And in extreme situations, it can involve violent threats, property ...

Bullying is a big problem. It can make kids feel hurt, scared, sick, lonely, embarrassed, and sad. Bullies might hit, kick, or push to hurt people, or use words to call names, tease, or scare them. A ...

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 ...