In the quest for a longer life, a new study suggests fit is where it's at -- even if you're fat.

A brisk 30-minute walk most days of the week is enough to undo metabolic syndrome, a health condition that can lead to heart disease, diabetes and stroke, a new study suggests.

The holiday season is also the season for heart attack, warns cardiologist Dr. Keith Churchwell, associate director of the Vanderbilt Heart and Vascular Institute at Vanderbilt University Medical Center in Nashville, Tenn.

When it comes to lowering children's blood pressure, the amount of exercise they get may be more important than the intensity.

Computer-generated phone call reminders are an effective, low-cost method to encourage sedentary adults to exercise, a new Stanford University School of Medicine study suggests.