Exercise Prevents DiseaseNo matter how much you weigh, physical activity boosts high-density "good" cholesterol lipoprotein (HDL) and decreases unhealthy triglycerides. Regular exercise can help you shape and tone your body, giving you more self-confidence and raising your self-esteem. Exercise Boosts EnergyIf you are winded by simple household jobs, exercise can improve your muscle strength and boost your endurance. Physical activity sends oxygen and nutrients to bodily tissue that helps your cardiovascular system work more efficiently. Regular physical activity may enhance arousal for women, and men who exercise regularly are less likely to have ED problems than are men who don't exercise.