Your doctor can't give you the best care if you don't say what's really going on. This true-false quiz will help you prepare for your next visit.

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.

Drug abuse and addiction can break apart families, ruin personal relationships, and make it difficult to keep a job.

True or false: A drug-alcohol interaction can lead to extreme drowsiness and other effects. Do you know the answer to this and other questions about drug interaction?

During pregnancy, is it OK to take an aspirin for that headache or a sleeping pill when you’re tossing and turning at night? Take this quiz to get the answers on different types of drugs and if they may have harmful effects on your unborn child.

As a source of foodborne illness, E. coli bacteria can be deadly. But aren't E. coli also regular residents of our intestines? When do E. coli become the "bad guys"? To learn more about this common bacterium, take the following quiz.

Infections of the middle ear, called otitis media, seem to be a common badge of childhood. Seventy-five percent of children experience at least one episode of otitis media by their birthday. How much do you know about this illness?

Ear, nose, and throat problems affect both children and adults. Knowing how to prevent them and how to treat them if they occur can help you stay healthy. See what you know about the ears, nose, and throat by taking this true-false quiz.

Many of us turn to dieting to shed a few extra pounds, but for some people, dieting becomes an obsession that turns into an eating disorder. This quiz provides helpful information on eating disorders.

The main symptom of emphysema is shortness of breath, which is caused by permanent damage to the small air sacs and small airways in the lungs.

Learn more about impotence by taking this multiple-choice quiz.

Don't sit too close to the TV. Don't watch TV without a light on in the room. Don't use over-the-counter eyedrops. Are these statements true? Find out by taking the following quiz.

Which habits can harm your vision? Learn about them by taking this quiz.

How much do you really know about those fat globules lurking in your food? Take this quiz and find out.

Fats are important to your diet, as are carbohydrates and proteins. Certain types of fats are better for you than others and eating too much of any kind of fat can pack on the pounds.

Fever seems to serve a helpful function in the body. See how much you know about fever by taking this quiz.

How much fiber should you consume? Is there more than one kind of fiber? What foods contain fiber? Test your knowledge about fiber by taking the Fiber Quiz.

Fibromyalgia affects millions of Americans, according to the American College of Rheumatology. Women of childbearing age are most likely to suffer from fibromyalgia, but it can affect men and children, as well.

True or false: What percentage of people have a fire escape plan for their home? Learn the answers to important fire prevention questions by taking this quiz.

Answer this one: In which situation(s) should you call an ambulance instead of driving to the hospital emergency department?

Take a look at the influenza virus under a microscope, and you'll see a funny-looking spiked ball. But if you've ever been flat on your back with the flu, you know there's nothing funny about this highly contagious virus. Test your savvy by taking this quiz.

Do you or does someone in your family have a food allergy? Take this quiz and learn how to better cope with this condition.

True or false: Perishable foods should not be left at room temperature longer than two hours.

Answer this one: Which ethnic food offers healthy, low-fat choices?

Each year, millions of Americans become ill from foodborne illnesses and thousands die. To help prevent foodborne illness, you can take steps to ensure the safety of the food you eat. To learn more about food safety, take this quiz.