The words "heart failure" may sound ominous, but its a common condition that is often managed successfully with medications and healthy lifestyle choices. About five million Americans live with heart failure (HF), according to the American Heart Association. One of the activities most beneficial to patients with stable HF is aerobic exercise, according to a review of 14 studies published in the June 19 Journal of the American College of Cardiology. Reviewers found that several indicators of heart function improved [IMGCAP(1)]with aerobic exercise. However, even if your HF is stable, its essential to adhere to specific exercise recommendations to prevent further damage to your heart.