Water workouts are easier on joints because of water's buoyancy. By how much does water reduce the body's weight?

True or false: There's no way of predicting if or when someone will have a stroke.

Answer this one: Which is the most common bacterial STI?

Sprain? Strain? The terms for these injuries sound so similar, what's the difference? Find out by taking this quiz.

Back pain is one of the most common nerve-related illnesses in the United States. Keeping your spine in good health is one way to avoid back pain. Learn more about your spine and back pain by taking this quiz.

Do you know the health risks of smoking? Avoiding them can help you have a healthy pregnancy and baby.

Learn about acne with this multiple-choice quiz. You'll learn, for example, which factors promote blackheads.

Eating a healthy diet is essential for people of every age. But as you age, doing so is especially important. To assess how much you know about good nutrition, take this quiz.

Prescription medications can successfully and safely treat mental and physical illnesses. But some medications can be addictive and many can be abused. Being aware of these potential harms can help you prevent them.

Answer this one: Which part of the body is affected the most by Reye syndrome? Learn about Reye syndrome by taking this quiz.