Picnics and barbecues and pottering in the garden are some of the delights of summer. For some people, though, these pleasant pastimes are ruined by a fear of bees and wasps and other things that sting. Should you worry? Find out by taking this true-false quiz.

Find out how much you know about the causes and treatment of impotence.

True or false: Shivering is one way the body produces heat.

It has been more than 40 years since singer/songwriter Woody Guthrie died of Huntington disease. He had been misdiagnosed for years—he'd even been labeled an alcoholic. Since that time, much as been learned about HD.

Hair spray, antifreeze, house paint. These and other common items found in any home are useful products when used correctly. In the wrong hands, however, they can be deadly.

If you have diabetes, you should know about the importance of hemoglobin A1c. Test your knowledge of hemoglobin A1c by taking this quiz.

Our world is filled with devices that make sound. But when someone is exposed to harmful sounds, the inner ear can be damaged.

When you get a headache, it's not the bones of the skull or the brain itself that's hurting. The pain comes from pain-sensitive nerves located near the muscles and blood vessels of the face, neck and scalp. Find out more about headaches by taking this quiz.

First identified in the early 1990s in the desert Southwest, the hantavirus has been reported in more than 30 states. Learn more about the virus and hantavirus pulmonary syndrome by taking this quiz.

True or false: Men are more likely than women to contract gout?