The short answer is, yes. Getting regular exercise is important because it helps strengthen your heart muscle, lower your blood pressure, and decrease cholesterol. It also keeps your blood sugar in check. A steady workout routine can also help you lose weight, reducing your risk of complications related to heart disease. With that being said, however, it's important to check with your health care professional before you start any exercise program with existing heart disease. He or she will go over safe exercises for you, as well as guidelines you should follow as you engage in physical activity.