Coronary heart disease is the abbreviation of coronary atherosclerotic heart disease. Coronary heart disease refers to a heart disease in which the blood vessels supplying nutrients to the heart: coronary arteries become severely atherosclerotic or spastic, resulting in narrowing or blockage of coronary arteries, as well as occlusion of the lumen caused by thrombosis, leading to myocardial ischemia and hypoxia or infarction, also known as ischemic heart disease. Clinical statistics show that there are more men than women with coronary heart disease, especially brain workers, obese people and people who often eat higher calories, more animal fat, cholesterol, sugar and high salt are more likely to suffer from this disease. In addition, diabetes, hypertension and smoking are all risk factors for hypertension. Therefore, those who have the above risk factors for coronary heart disease should pay attention to effective prevention. The hazards of coronary heart disease are as follows: (1) The narrowing of coronary arteries will reduce the blood flow supplying the heart, resulting in insufficient blood supply to the myocardium, and patients will suffer from angina pectoris; even coronary atheromatous plaque ruptures and forms thrombus, blocking the lumen, causing the myocardium to completely lose blood supply, and patients will suffer from heart attack or sudden death. Famous artists Hou Yaowen and Gao Xiumin both died of coronary heart disease. (2) In addition to angina pectoris and myocardial infarction, coronary heart disease can also lead to various arrhythmias as well as heart enlargement and heart failure due to myocardial ischemia. The most serious arrhythmia is ventricular fibrillation, which is clinically manifested as sudden death. Angina pectoris, myocardial infarction, arrhythmias, cardiac enlargement and heart failure can coexist as a result of each other. Sudden death is the main form of death from coronary heart disease. Control risk factors to prevent coronary heart disease: (1) Cholesterol control: Coronary heart disease is formed by cholesterol embedded in the inner wall of arteries, narrowing the coronary arteries. So eat a healthy diet with less high cholesterol foods: egg yolk, animal offal, meat, etc. And do regular blood lipid examination, if abnormal, lipid regulating treatment should be done. (2) Control hypertension: Hypertension is a common disease, although it rarely causes symptoms, it is a major risk factor for coronary heart disease. To control hypertension, regular exercise, weight control, reduction of salt intake and medication to lower blood pressure can be adopted. (3) Control diabetes: Type 2 diabetes is a high-risk group for cardiovascular disease, and the risk of coronary heart disease in type 2 diabetic patients is 3-4 times higher than in non-diabetic patients. Therefore, it is very important for diabetic patients to control blood sugar. (4) Change poor lifestyle: quit smoking, eat healthy, control weight, reduce mental stress, exercise in moderation, and limit alcohol consumption. (5) Reduce mental stress: excessive mental stress can put the body in a state of stress, leading to an accelerated heartbeat and increased blood pressure. Continuous pressure health brings damage. Ways to relieve stress: draw up a day plan, adapt to the environment, maintain an optimistic state of mind, and adhere to a moderate amount of exercise, rest and recreation every day. How to detect coronary heart disease early? Coronary heart disease is a common and frequent disease among middle-aged and elderly people. People at this age should seek medical attention in time to detect coronary heart disease as early as possible if the following conditions occur in daily life (1)Dull pain behind the sternum or precordial area, or tightness-like pain that radiates to the left shoulder and left upper arm when exertion or mental tension occurs, lasting 3-5 minutes and relieving on its own after rest. (2) Those who develop chest tightness, palpitations, and shortness of breath during physical activity, and relieve themselves at rest. (3) Those who develop exercise-related headache, toothache, leg pain, etc. (4) Those who develop chest pain and palpitations during a full meal, cold or watching a thrilling movie. (5)When sleeping at night with a low pillow, you feel tightness in your chest and need to lie on a high pillow to feel comfortable; when sleeping or lying down during the day, you suddenly have chest pain, palpitations and difficulty in breathing, which can be relieved by sitting up or standing up immediately. (6) Panic, chest tightness, shortness of breath or chest pain during sexual intercourse or forceful defecation. (7) Hearing noise will cause panic and chest tightness. (8) Recurrent irregular pulse and unexplained rapid or slow heartbeat. For early detection of coronary heart disease, the following tests should be done regularly for people over 40 years of age: If the test results are abnormal or there are other risk factors for coronary heart disease, blood cholesterol tests should be done once or more every five years. Blood pressure check once a year. Blood glucose test once a year. If you are at high risk for coronary heart disease, ask your doctor to see if you need an electrocardiogram. If further testing is needed, your doctor will order an exercise test to measure your ECG while pedaling a stationary bike or on an exercise bike. If necessary, a coronary CT or coronary angiogram will be performed. What should I do if I have coronary heart disease? (1) Patients with coronary artery disease should always have nitroglycerin on hand. (2) The common symptom of acute myocardial infarction is persistent pain behind the sternum or in the precordial region, which cannot be relieved after 15 minutes. (3) Emergency care for patients with coronary heart disease: keep calm, lie down naturally, keep the airway open, and keep warm.