In 1772, Heberden, an Englishman, documented that angina pectoris patients’ symptoms almost completely disappeared after 30 minutes of daily logging work. Research studies have shown that the incidence of coronary heart disease is 2.5 to 4 times higher in people with little physical activity than in those who exercise regularly, and the incidence of coronary heart disease is significantly higher in urban residents than in rural populations, with the highest incidence in urban residents engaged in mental labor. The mechanism of physical activity and physical exercise to prevent coronary heart disease attack has the following aspects: 1. Physical exercise can expand the coronary vessels, which increases the blood flow of coronary arteries, and also expands the microvessels, promotes the formation of collateral circulation, improves the stenosis and spasm of coronary arteries, improves the compensatory capacity of coronary artery system for coronary lesions, improves myocardial blood supply, myocardium gets more nutrients, myocardial fibers become thicker, myocardium The excitability of the myocardium is enhanced, so that the contractility of the myocardium increases, thus improving the pumping function of the heart. 2, physical activity can consume excess calories, lose weight, avoid excessive calories into fat, improve the patient’s lipid metabolism, reduce the level of blood triglycerides and low-density lipoproteins, increase the level of high-density lipoproteins, thereby reducing blood lipids, and the reduction of blood lipids can improve the lysis activity of fibrin in the blood, prevent platelet aggregation and thrombus formation, and slow down the development of atherosclerosis. development. 3, appropriate physical activity can reduce neurohumoral over-reflection and increase the load capacity of stress, so that adrenaline activity is reduced, reducing vascular tension and increasing elasticity, which can help reduce blood pressure and prevent the occurrence of cardiovascular and cerebrovascular diseases such as atherosclerosis, hypertension, cerebral thrombosis and cerebral hemorrhage. Also can reduce the occurrence of serious arrhythmias, so that the possibility of sudden death due to ventricular fibrillation is reduced. 4, exercise can improve the sensitivity of skeletal muscle cells to insulin, facilitate the use of glucose, reduce the burden on pancreatic β-cells, correct the relative lack of insulin and insulin resistance brought about by disorders of glucose metabolism, improve sugar and fat metabolism, and improve the body’s ability to maintain stable blood sugar hormone regulation. 5, appropriate physical activity can also help reduce mental stress, regulate the vegetative nerves, restore fatigue, so as to avoid insomnia, neurasthenia and other diseases common to brain workers. 6, exercise can be through the neurological and endocrine pathways, the organs and immune function regulation, to promote the improvement of the function of the body’s systems, so that the body is enhanced, resistance can be significantly improved, so as to achieve the purpose of disease prevention.