Sometimes you may get emotional or feel really rotten. You may or may not know why. Check out these articles on your emotions and behavior to help get them in check.

When learning about diabetes, it helps to learn the words and terms that are used when people talk about this disease. Find a glossary here.

Infections are easily spread and kids get them all the time. Read our articles on infections to find out more about how to prevent them and treat them.

What does it mean to be fit? It means your body is strong and can do the things you want it to do. Look here for more fitness info.

Just as our bodies grow and mature, another natural part of our development is discovering and learning who we are. So how do we “find ourselves”? Where does identity come from? This section provides ...

This section has information on conditions that can affect how we grow, as well as diseases that relate to the body's endocrine system, like diabetes or thyroid problems.

Your doctor and/or nurse will probably: 1. Check your child's weight and height, calculate body mass index (BMI), and plot the measurements on a growth chart. 2. Check your child's blood pressure ...

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.

Doctors use certain milestones to tell if a baby is developing as expected. There's a wide range of what's considered normal, so some babies gain skills earlier or later than others. Babies who were ...

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 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 ...

Every single person has a skeleton made up of many bones. These bones give your body structure, let you move in many ways, protect your internal organs, and more. It's time to look at all your bones — ...