Atopic dermatitis is a chronic, inherited skin condition that affects millions of Americans. The following quiz offers helpful facts about the condition.

Autism is a developmental disability that usually starts in early childhood. Because different children can have widely different symptoms, autism is classified as a "spectrum disorder," which means it is a group of disorders with similar features.

Test your knowledge of these serious—and mysterious—class of diseases.

Answer this one: What position is best for your back when you sleep?

Although millions of Americans have balanced disorders, they can be difficult to diagnose. That's because dizziness--a common symptom--is such a broad term.

Here's a tough one: When is an unborn baby most at risk of developing abnormalities?

The last time you visited your doctor for an illness, he or she might have ordered a CBC test to help determine the diagnosis. CBC stands for complete blood count, but what does that mean? And what do all those numbers on the result sheet mean? Find out by taking this quiz.

Every year, millions of Americans roll up their sleeves to donate blood, helping accident victims, surgical patient and others in need. How much do you know about blood transfusions? Take this multiple-choice test and find out.

Botulism is rare, but extremely dangerous. This quiz will help you learn how to make sure the food you eat is safe.

Breastfeeding is filled with benefits to your child and you. Do you know what they are?