Many Americans take vitamins, minerals, or other dietary supplements every day without knowing enough to ensure optimum results.

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.

Cluster headaches are uncommon, but when they occur, they bring on severe head pain. The pain is constant, focused in and around one eye. This video discusses the possible causes of this type of headache and recommended treatments.

As your body's largest organ, your skin is a master multitasker. It keeps fluids in, preventing dehydration. It regulates body temperature. It senses external stimuli, such as pain. It produces vitamin D from sunlight.