¿Qué es el síndrome de rumiación? El síndrome de rumiación consiste en que la comida recién ingerida regresa a la boca desde el estómago. Cuando esto ocurre, la persona mastica y se vuelve a tragar la ...

Plantar fasciitis (PLAN-ter fash-ee-EYE-tus) is pain and inflammation on the bottom of the foot and heel from too much pressure on the foot. It tends to happen in kids and teens who do a lot of ...

What Is Iliotibial Band Syndrome? Iliotibial (IT) band syndrome is an overuse or repetitive stress injury to the knee or hip that can happen someone bends their knee a lot. It tends to happen in ...

What Is Hypotonic Cerebral Palsy? Cerebral palsy (CP) affects muscle movement and control. People with CP have it for life. Hypotonic CP is rarer than other types of CP. In rare cases, CP happens ...

What Is Gastroesophageal Reflux (GER)? Gastroesophageal reflux (GER), or reflux, is when food and acid from the stomach go back up into the esophagus and sometimes out the mouth or nose. It’s normal ...

Most blood tests take only a few minutes. They’re done at some doctor’s offices, and at community labs, diagnostic centers, and hospitals. A doctor, nurse, or phlebotomist (fleh-BOT-eh-mist, someone ...

A period is a release of blood from a girl's uterus, out through her vagina. It is a sign that she is getting close to the end of puberty. It also means that she can get pregnant if she has sex. There ...

Sugar substitutes are artificial (fake) sweeteners. Some food makers use sugar substitutes in place of sugar to make foods and drinks taste sweet. These sweeteners don’t have nutrients to help kids ...

A central line (or central venous catheter) is like an intravenous (IV) line. But it is much longer than a regular IV and goes all the way up to a vein near the heart or just inside the heart. A ...

How Does Air Enter the Respiratory System? Air enters the respiratory system through the nose or the mouth. If it goes in the nostrils (also called nares), the air is warmed and humidified. Tiny hairs ...

Girls have lots of questions about the body changes of puberty. When will my breasts grow? What's the "normal" age to get your first period? Watch this video and find out!

Is it OK to Color My Hair During Pregnancy? Because very little dye is absorbed through the skin, coloring your hair is "usually safe" during pregnancy, according to the American College of ...