At any given time, millions of people in the U.S. are trying to lose weight. They spend billions of dollars each year on weight-loss products and services. Learn more about diets and weight loss by taking this quiz.

This calculator is for children with asthma. If you know your child's height, you can find his or her predicted peak flow meter value.

Breast cancer is the most frequently diagnosed cancer in women. Experts don’t know the exact causes of breast cancer, but research has shown that certain factors increase a woman's chances of getting this disease. Although some women are at higher risk, the fact is, all women are at risk for breast cancer. Learn more by participating in our Breast Cancer Risk Factors Multimedia Interactive Program.

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.

Having shoulder pain or problems lifting your arms over your head? You may have tendonitis or a tear in the muscles and tendons that hold your shoulder in place, called the rotator cuff. This video explains symptoms of this syndrome, possible treatments, and ways you can prevent shoulder injuries.

Newfangled devices make it easier than ever to monitor blood sugar, but an analysis of more than 30 studies suggests that newer isn’t necessarily better in terms of blood sugar control.

Cataract surgery improves vision for many. A cataract is a cloudy area within the lens of the eye. Signs that you may have cataracts can include symptoms of decreased night vision, halos around lights, discolored vision, or sensitivity to glare.