1. Coronary heart disease is a kind of heart disease caused by myocardial ischemia and hypoxia (angina pectoris) or myocardial necrosis (myocardial infarction) caused by organic coronary artery stenosis or occlusion, also known as ischemic heart disease. 2. Symptoms of coronary heart disease: there is a sense of oppression in the center of the chest, which can extend to the neck, jaw, arms and stomach. Other possible symptoms include dizziness, shortness of breath, sweating, chills, nausea and fainting. Severe patients may die of heart failure. 3. Prevention of coronary heart disease: (1) Eat a reasonable diet, not partial eclipse, and don't overdo it. To control high-cholesterol and high-fat foods, eat more vegetarian food. At the same time, we should control the total calorie intake and limit the weight gain. (2) Life should be regular to avoid excessive tension; Keep enough sleep and cultivate a variety of interests; Keep your mood stable, don't be impatient, excited or unhappy. (3) Maintain proper physical exercise activities and enhance physical fitness. (4) Non-smoking and excessive drinking: Smoking can shrink the arterial wall and promote atherosclerosis; Alcoholism, on the other hand, is easy to get emotional and raise blood pressure. (5) Actively prevent and treat chronic diseases in the elderly, such as hypertension, hyperlipidemia, diabetes and other diseases closely related to coronary heart disease. 4. Self-regulation of patients with coronary heart disease: (1), calm when things go wrong. Patients with coronary heart disease are often grumpy, so they are easy to get angry and offend people. We must always remind ourselves to be calm and be more patient. (2) tolerate others. Forgiving others can not only bring peace and tranquility to oneself, but also help to recover from coronary heart disease, win friendship and maintain interpersonal harmony. Therefore, people call forgiveness "a spiritual tonic and an indispensable vitamin for mental health". (3), something to get over, let go. Too meticulous and demanding blame often leads to self-isolation, which will produce mental stress and damage the heart. Patients with coronary heart disease should be calm and downplay their children, money, reputation, status and their own diseases. (4) Master a set of methods of physical exercise and psychological adjustment. For example, self-relaxation training: through breathing relaxation, mental relaxation, physical relaxation or through qigong, Tai Ji Chuan and other activities, enhance their rehabilitation ability. 5. Coronary heart disease diet: (1) Fatty foods that the wife can eat at will ① All kinds of cereals, especially coarse grains. ② Bean products. Vegetables, such as onions, garlic, cauliflower, mung bean sprouts, lentils, etc. ④ Bacteria and algae, such as mushrooms, fungus, kelp and laver. ⑤ All kinds of melons, fruits and teas. (2) Fatty foods that are properly eaten ① Lean meat, including lean pork, beef and poultry (peeled). ② Fish, including most river fish and marine fish. ③ Vegetable oil, including soybean oil, corn oil, sesame oil, peanut oil, fish oil and olive oil. (4) Milk, including skim milk and its products. ⑤ Eggs, including egg whites and whole eggs (2~3 eggs per week). (3) Eat less or avoid fatty foods ① Animal health fats, such as lard, butter, sheep oil and chicken oil. (2) Fat meat, including pigs, cattle, sheep and other fat meat. ③ Brain, bone marrow, viscera, egg yolk and fish eggs. (4) mollusks and shellfish. (5) sugar, wine, cigarettes, chocolate, etc. 6. Diet principle of coronary heart disease: (1). Control calories and maintain an ideal weight. (2) Control the quality and quantity of fat intake. (3) control sugar intake. (4) Appropriately increase dietary fiber intake. (5) Provide rich vitamins. (6) Ensure the supply of necessary inorganic salts and trace elements. (7). Eat more meals and less, avoid overeating, and don't eat too much at dinner, otherwise it will easily induce acute myocardial infarction. (8). Don't drink. Alcohol can accelerate the heart rate and aggravate myocardial hypoxia, so alcohol should be banned. 7. Wish you good health.