Parents often associate sexual development with the teen years. But kids develop an emotional and physical foundation for sexuality in many subtle ways from infancy. Physical and emotional changes ...

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 ...

Medically reviewed by: Lonna P. Gordon, MDThis link opens in a new tab Learn About Adolescent Medicine & Pediatric Gynecology at Nemours Children's HealthThis link opens in a new tab To help protect ...

Breast milk is the food of choice for at least the first year or beyond. Cow's milk should be avoided until after kids reach their first birthday. Babies and toddlers need fat in their diets for a ...

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: Jolanda M. Denham, MDThis link opens in a new tab Learn About Gastroenterology (Digestive System Care) at Nemours Children's HealthThis link opens in a new tab Gastroesophageal ...

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 The heart is a pump, usually ...

What Is Mitral Valve Prolapse? Mitral valve prolapse is a common heart condition. It happens when there’s a problem with how one of the heart's valves works. Heart valves keep blood moving through the ...

Glucose is the main type of sugar in the blood and is the major source of energy for the body's cells. Glucose comes from the foods we eat or the body can make it from other substances. Glucose is ...

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 ...

Medically reviewed by: Amy W. Anzilotti, MDThis link opens in a new tab Learn About Pediatric Neurology (Brain & Nervous System Care) at Nemours Children's HealthThis link opens in a new tab Chiari I ...

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 The digestive system breaks ...