What Is Obstructive Sleep Apnea? Sleep apnea is when a person stops breathing during sleep. It usually happens because something obstructs, or blocks, the upper airway. This is called obstructive ...

Medically reviewed by: KidsHealth Medical ExpertsThis link opens in a new tab Learn About Primary Care Pediatrics at Nemours Children's HealthThis link opens in a new tab Reproduction is the process ...

If your child has a serious illness like cancer or a chronic (ongoing) condition like asthma, your doctor might talk to you about enrolling your child in a clinical trial. A clinical trial is a study ...

Medically reviewed by: Deepika Thacker, MDThis link opens in a new tab Learn About Cardiology (Heart Care) at Nemours Children's HealthThis link opens in a new tab A ventricular septal defect (VSD) — ...

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.

Medically reviewed by: KidsHealth Medical ExpertsThis link opens in a new tab Learn About Primary Care Pediatrics at Nemours Children's HealthThis link opens in a new tab Rohypnol (roe-HIP-nol) is ...

Why Is Hand Washing So Important? It's a message worth repeating — hand washing is by far the best way to keep kids from getting sick and prevent the spread of germs. When kids have contact with germs ...

The roller coaster hesitates for a split second at the peak of its steep track after a long, slow climb. You know what's about to happen — and there's no way to avoid it now. It's time to hang onto ...

Doctors often recommend physical therapy for kids and teens who have been injured or who have movement problems from an illness, disease, or disability. After an injury, physical therapists (PTs) work ...

Medically reviewed by: Yamini Durani, MDThis link opens in a new tab Learn About Emergency Medicine at Nemours Children's HealthThis link opens in a new tab When your child is sick or injured, it's ...

Learn About Cardiology (Heart Care) at Nemours Children's HealthThis link opens in a new tab An atrial septal defect (ASD) — sometimes called a hole in the heart — is a type of congenital heart defect ...

Medically reviewed by: KidsHealth Medical ExpertsThis link opens in a new tab Learn About Primary Care Pediatrics at Nemours Children's HealthThis link opens in a new tab We see and hear about hearts ...