Exercise increases physical activity and increases the efficiency of the heart and lungs; exercise enhances myocardial contractility and increases coronary blood flow; exercise regulates blood pressure and heart rate to stabilize them; exercise regulates blood lipids and increases the concentration of HDL (vascular protective lipoproteins); exercise increases insulin sensitivity and regulates blood sugar; reduces platelet aggregation and increases fibrinolysis Exercise reduces the chance of myocardial infarction and stroke; helps to lose weight or maintain ideal weight by burning excess fat through regular exercise; eliminates emotional stress and helps to improve sleep; increases your confidence and interest in life and improves your social adjustment.