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

Back pain is a common complaint, but how serious is it? Take this quiz and see how much you know about back care.

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.

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

Allergies are nothing to sneeze at. Learn how to better deal with this condition.

Answer this one: An overweight person with high blood pressure should pay more attention to a low-sodium diet than to weight reduction.

The weather has more to do with your health than you might realize. Learn more about the weather and you by taking this quiz.

When you're thirsty for a drink of water, you probably turn on the tap, or open a container of bottled water. You may take for granted the quality of the water you drink. but water safety can vary from place to place. Find out more about drinking water by taking this quiz, based on information from the U.S. Environmental Protection Agency.

Answer this one: Lawyers and teachers are particularly susceptible to vocal abuse and misuse problems.

Sometimes it's hard to keep your vitamin facts straight. How much vitamin A do you need? What's the best source of Vitamin C? Here's a quiz that offers a chance to learn something different about vitamins.