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.

There isn't much good that can be said about smoking. Now, on a positive note, do you know how much money you can save if you quit smoking today?

Coronary artery disease (CAD) is the most common type of heart disease. It is the leading cause of death in the United States in both men and women. Determine your risk for developing CAD using this assessment tool.

Although used less commonly than knee or hip replacement, shoulder replacement surgery removes diseased or damaged bone in the shoulder and replaces it with an artificial joint. If arthritis pain is unrelieved by other methods, you may need replacement surgery. Learn how the shoulder works and what to expect in replacement surgery.

A home should be a haven—a place where you rest and enjoy time with family—a place of safety and security. But that isn't always the case.