The relationship between exercise and health

The relationship between exercise and health, I think, first, exercise can prevent cardiovascular diseases, especially aerobic exercise can increase the output of cardiovascular blood, enhance the contractility of myocardium and improve the blood circulation of the whole body; Second, exercise can prevent diabetes, and exercise can stimulate insulin secretion; Third, exercise can prevent osteoporosis, which is the most effective way to enhance calcium absorption; Fourth, exercise can prevent cancer and enhance intestinal peristalsis, which is conducive to the timely discharge of these toxins, so cancer is not so frequent.