With the accelerated pace of life, modern people are exercising less and less, and lack of exercise has become one of the most serious public health problems in the 21st century. Medical studies have shown that lack of exercise is a definite risk factor for cardiovascular disease, and about 1/3 of ischemic heart disease is associated with lack of exercise. Reduced exercise is as important a cardiovascular risk factor as hypercholesterolemia and hypertension, and in 2012, the Lancet series reported that 10% of premature deaths worldwide (5.3 million deaths in 2008) were due to physical inactivity. This shows that lack of exercise contributes to more premature deaths than smoking. So many people now say, “Sitting still is more harmful than smoking.” A growing body of medical research proves that a healthy lifestyle can prevent the vast majority of heart attacks from occurring. A Swedish study showed that forming five lifestyle habits could help prevent 4 out of 5 myocardial infarctions in male patients, including a healthy diet, moderate alcohol intake (no more than 25 grams per day), quitting smoking, being physically active and avoiding abdominal obesity. The results showed that only 1% of men were able to adhere to these five habits, and only 5% of women could do so. What are the benefits of exercise on the human cardiovascular system? Mainly reflected in three aspects: 1, direct protection, mainly to improve vascular endothelial function and antioxidant effect; 2, indirect protection, mainly to increase blood flow in the heart and brain, improve microcirculation, lowering blood pressure, lowering sugar, lowering fat, reduce body weight, etc.; 3, regular exercise can improve the body’s ability to cope with the sudden lack of oxygen tolerance. I believe we often find that some middle-aged and elderly people have this idea, whether healthy or not, regular annual infusion of “nutrient solution”, hoping to unclog the blood vessels, melting thrombosis, these are wrong views, truly inferior to the benefits of good exercise! So how should we exercise? There are several basic knowledge as follows: 1, regardless of age, should adhere to the appropriate amount of exercise exercise, at least 5 days a week, 30-45 minutes a day. 2, aerobic exercise as the main mode of exercise, such as jogging or brisk walking, swimming, cycling and so on, the exercise process is divided into three stages, including 5-10 minutes of light warm-up activities, 20-30 minutes of endurance activity time, about 5 minutes of relaxation recovery time. 3, the need to grasp the “amount” of exercise, know the “right amount”. The amount of exercise should be appropriate, research shows that low to moderate intensity exercise on the cardiovascular protection benefits are strongest (low exercise: 3-5 times a week, each lasting 20-30 minutes; moderate exercise: ≥ 3 times a week, each lasting 40-60 minutes. The second is to be gradual, everyone has different exercise capacity, especially people in poor physical condition. Special attention should be paid. 4, any population, pay attention to the adverse reactions that occur during exercise. Even normal healthy people, if you need to participate in strenuous exercise, it is necessary to improve some cardiac examinations, such as cardiac ultrasound, electrocardiogram exercise test, etc.. In the case of heart patients, a step-by-step cardiac rehabilitation exercise program needs to be developed under the guidance of a doctor. To ensure the safety and effectiveness of exercise therapy. 5, some patients who consider themselves “unable to exercise” (such as suffering from bone and joint, ligament disease, etc.), in fact, is not unable to exercise, but should be under the guidance of doctors to take the appropriate form of exercise, the correct exercise, in order to improve cardiopulmonary function at the same time, the original joint, ligament disease will also have a certain therapeutic effect.