Germs: We find them everywhere— or they find us. It seems we can't avoid them. We spend a lot of time worrying about picking them up, sharing them, and losing them. But what do we really know about germs? Take this quiz to find out.

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.

How many cups of vegetables should you eat each day? How about milk? Meat? The My Plate eating plan can help you find out.

What do you know about crime against the elderly, and how to prevent it?

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 this 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.

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.

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?

Marijuana contains the flowers, stems, seeds, and leaves of the hemp plant. To learn more about marijuana, take this quiz.

Substance-use disorder is also called drug addiction. It can break apart families, ruin personal relationships, and make it difficult to keep a job.