Low salt, low sugar, low fat, low cholesterol, light and digestible, high quality protein diet. Let me introduce some health care knowledge to you. A. Proper exercise After coronary intervention, patients should not stay in bed and sit still all day, but should exercise properly under the guidance of a doctor. Regular exercise is helpful to keep the coronary artery lumen unobstructed and promote the growth of myocardial collateral vessels in ischemic area. Generally speaking, the level of postoperative activity should be based on preoperative physical condition, activity habits, postoperative heart condition and different environments, and aerobic exercise, such as walking, doing exercises and playing Tai Ji Chuan, should be advocated. Note: Exercise must be moderate. Please consult your doctor before doing any exercise. B. Changing diet structure and eating habits with a good diet is helpful to control blood lipid and blood pressure, thus preventing the occurrence of coronary restenosis. Diet should be emphasized after percutaneous coronary intervention, and fish is the main food in protein to avoid overeating or overeating. Eat more fresh vegetables, fruits, lean meat, chickens, ducks, rabbits, fish, bean products and dairy products. It is not advisable to eat animal viscera, squid, crab roe, egg yolk, fried, fried, barbecue and other foods frequently or in large quantities. Maintain emotional stability and avoid ecstasy or depression. Literature shows that once the patients with coronary heart disease are diagnosed, they all have different degrees of psychological stress, which will accelerate the progress of arteriosclerosis and increase the occurrence of cardiac emergencies. 2) Main risk factors for treating coronary heart disease A. Actively treat diabetes. For patients with coronary heart disease complicated with diabetes, fasting blood glucose or postprandial blood glucose should be controlled at a normal level. B. control blood pressure. Patients with hypertension should take medicine under the guidance of a doctor, and their blood pressure should be controlled below 140/90mmHg. C, lowering blood lipid, reducing the total cholesterol level in blood to below 65,438 0.80 mg/dl, low density lipoprotein to below 65,438 0.00 mg/dl, and triglyceride to below 65438±0.70/dl. 3) Weight control is not only conducive to lowering blood lipids and controlling hypertension, but also can reduce the burden on the heart, thus preventing the recurrence of coronary heart disease. 4) Quit smoking 5) Taking aspirin, an antioxidant or anti-atherosclerosis drug, can inhibit platelet aggregation, have anti-inflammatory and anti-oxidation effects, and contribute to the prevention and treatment of atherosclerosis. Statins can not only reduce blood cholesterol, but also increase high density lipoprotein, which has the functions of stabilizing coronary atherosclerotic plaque, anti-inflammation and protecting vascular endothelium, and can reduce the occurrence of cardiac emergencies. Coronary stent is to expand the narrow part of coronary artery by interventional method, and put it into metal stent to support the narrow part, so that the narrow blood vessel wall expands outward. After stent implantation, new endothelial cells gradually cover the surface of the stent, so that the stent is finally completely embedded in the blood vessel wall, supporting the blood vessel to maintain a continuous open state and keeping the coronary artery unblocked.