The temporomandibular joint (TMJ) connects the lower jaw to the skull. You can feel your two TM joints and their movement by placing your fingers directly in front of your ears and opening your mouth.

From enjoying the great outdoors to playing sports safely, here's how to protect yourself and deal with emergencies.

Por lo general, los médicos no pueden saber si una persona se ha estado masturbando (tocarse o frotarse los genitales porque le gusta lo que se siente). La única manera de que los médicos sepan si una ...

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 — ...

Rejection doesn't have to be about the big stuff like not getting into your top college, not making the team, or not getting asked to prom. Everyday situations can lead to feelings of rejection, too, ...

What Are the Lungs and Respiratory System? The lungs and respiratory system allow us to breathe. They bring oxygen into our bodies (called inspiration, or inhalation) and send carbon dioxide out ...

What Does the Immune System Do? If you've ever wondered how your immune system works, this movie is for you!

A girl's periods can cause some uncomfortable symptoms. Most of the time, there's no reason for concern. But some problems need care from your doctor. Here's how to cope with most period problems.

Tranquilizers and other depressants (dih-PRESS-entz) calm nerves and relax muscles. They are bright-colored capsules or tablets that are legally available through a doctor for medical reasons, but can ...

You can't control what other drivers do. But you can do things to lower your chances of being in a crash. This is what it means to be a defensive driver. Before you get behind the wheel, get into the ...

Which part of your body lets you read the back of a cereal box, check out a rainbow, and see a softball heading your way? Which part lets you cry when you're sad and makes tears to protect itself?

Everyone feels stressed out at times. You can avoid getting too stressed out by handling everyday pressures and problems, asking for help when you need it, and making time to relax.