Coughing is a healthy reflex that helps clear the airways. A severe cough or one that lasts more than a week requires a medical checkup. But many coughs are caused by a virus that just needs to run ...

Enthesitis-related juvenile idiopathic arthritis causes inflammation where tendons and ligaments connect to bones. Treatments can help with symptoms, so children can live a full and active life.

Swimming is a lot of fun, but drowning is a real danger. Even kids who know how to swim can drown, so let's find out how to stay safe in the water while you enjoy the great outdoors. Why Is It ...

Before having sex, it’s important to know about birth control and protecting against unplanned pregnancy and sexually transmitted diseases (STDs).

Ever wonder how your eyes work? This article for kids takes you from the pupil to the retina and beyond.

The heart and circulatory system (also called the cardiovascular system) make up the network that delivers blood to the body's tissues.

The nose, throat, and lungs are just a few parts of the body that make up the respiratory system. They work together to bring oxygen into the body and take carbon dioxide (a waste product) out.

Inhalants are things that are breathed in (inhaled) to give the user an immediate rush, or high. They include glues, paint thinners, dry cleaning fluids, gasoline, felt-tip marker fluid, hair spray, ...

Where would you be without your bones? Learn more about the skeletal system in this article for kids.

Most of us know about teens and cutting — how some use a sharp object like a razorblade, knife, or scissors to make marks, cuts, or scratches on their own body. But cutting is just one form of ...

Take this quiz about the circulatory system, which sends blood throughout your body.

Adenoids trap germs, so sometimes they swell while fighting an infection. If they get infected, tonsils and adenoids might be removed in a surgery at the same time.