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 How do you remember the way ...

Medically reviewed by: Larissa Hirsch, MDThis link opens in a new tab Learn About Primary Care Pediatrics at Nemours Children's HealthThis link opens in a new tab The male reproductive system is made ...

Medically reviewed by: T. Ernesto Figueroa, MDThis link opens in a new tab Learn About Urology at Nemours Children's HealthThis link opens in a new tab Testicular torsion is an emergency condition. It ...

Medically reviewed by: Larissa Hirsch, MDThis link opens in a new tab Learn About Primary Care Pediatrics at Nemours Children's HealthThis link opens in a new tab When we breathe, the respiratory ...

Stretch marks are fine lines in the skin that happen when quick growth or weight gain stretches the skin (like during puberty). Skin is usually fairly stretchy, but when it's overstretched, the normal ...

You might go to the hospital if you fall off your bike and break your arm or if you have asthma and have trouble breathing. You might go to the hospital if you become dehydrated and need IV fluids or ...

What Is a Spinal Tap/Lumbar Puncture? A lumbar puncture, or spinal tap, is a medical test that involves collecting a small sample of cerebrospinal fluid (CSF) for examination. This clear, colorless ...

The Internet is amazing! But it also has some things you need to watch out for. You're always you, of course. But if you use a smartphone, tablet, or computer to play games and text with friends, you ...

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 Every single person has a ...

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 ...

Parkinson's disease is a health problem of the brain and spinal cord. A person with Parkinson's has trouble controlling their body’s movements. Their hands might shake, or they might have a hard time ...

Homework takes time. But it doesn’t have to take too much time. You want time to play, relax, and do other things, too. If you learn how to get organized and get focused, then you can get it done in a ...