Beginning of Essay
Risks factors for that can and can not be changed. The risks factor for have been categorize by the American Heart Association (AHA) as the following: (1) Major risks factors that can not be changed (increasing age, male gender, and heredity). (2) Major risk fac ....

Middle of Essay
.... risk of a heart attack is about 50 percent less than if you are inactive and out of shape. With routine exercise you can reach a level of physical fitness comparable to an active person ten to twenty years younger. Regular exercise may also lower your cholesterol and blood pressure, and reduce the risk of diabetes. Exercise increases the size of coronary arteries and reduce clogging due to atherosclerosis. Exercise also increases the efficiency of your blood's oxygen-carrying capacity and your muscles' uptake of oxygen. Exercise has been linked to increased levels of high density lipoprotein (good) cholesterol and decreases low-density ....