Testing a stool sample can help doctors find out what's going on when someone has a problem in the stomach, intestines, rectum, or other part of the gastrointestinal (GI) system. Unlike most other lab ...

Heavy metals are elements that are found in soil, water, and the air we breathe. Plants take up these metals as they grow and can end up in the food we eat. Our bodies need some heavy metals (like ...

We see and hear about hearts everywhere. A long time ago, people even thought that their emotions came from their hearts, maybe because the heart beats faster when a person is scared or excited. Now ...

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 ...

Earaches are common in kids and can have many causes. Here’s why they happen and what to do when your child complains of ear pain. Give acetaminophen or ibuprofen as needed to ease pain (check the ...

A parked car in sunny weather is like a greenhouse and heats up very quickly. Even on a mild, sunny day in the 60s, the temperature in a parked car can get dangerously high. Every summer, there are ...

Pinworms are tiny worms that can cause an infection in the intestines. Pinworm infections affects millions of people each year, especially school-age kids If your child develops a pinworm infection, ...

How much do you know about your heart? Find out by taking this quiz!

Herd immunity is the idea that when many people are immune to (protected from) a contagious infection, it's harder for that infection to spread in a community. Antibody shots against specific germs ...

Breastfeeding can take time and practice to get used to. Here's what you need to know about spitting up, gagging, and other concerns during breastfeeding. Is it Normal for My Baby to Spit Up After ...

Can I shave my pubic hair? Is it safe? Shaving is one way to remove pubic hair. It is fairly inexpensive, and you can do it yourself. Go slowly, pulling skin taut before running the razor over the ...

Sexually transmitted diseases (STDs) are infections spread from person to person during sex (vaginal, oral, or anal) or close sexual contact. STDs are also called sexually transmitted infections, or ...