A sedentary (inactive) lifestyle is one of the top risk factors for heart disease. Fortunately, it's a risk factor that you can do something about. When you have a heart disease, it is very important to exercise regularly. If you aren't already active, your doctor may want you to begin an exercise program. Even if you can only do a small amount of exercise, it is better than not doing any exercise at all. Being physically fit enhances the quality and the length ...