Heart disease is caused by narrowing of the lumen of the coronary arteries that supply the heart itself due to the formation of atheromatous plaques in the walls of the coronary arteries. As the number and degree of coronary artery stenosis varies, the clinical symptoms are different. The cause of this disease is not yet fully understood, but it is believed to be related to hypertension, hyperlipidemia, hyperviscosity, diabetes mellitus, endocrine hypofunction and age. 1, age and gender: the incidence of coronary heart disease increases after 40 years of age, the incidence of pre-menopausal women is lower than that of men, and after menopause is equal to that of men. 2, hyperlipidemia: In addition to age, disorders of lipid metabolism are the most important predictors of coronary heart disease. There is a close relationship between total cholesterol (TC) and low-density lipoprotein cholesterol (LDLC) levels and the risk of coronary heart disease. Triglyceride (TG) is an independent predictor of coronary heart disease, often accompanied by low HDLC and abnormal glucose tolerance, the latter two are also risk factors for coronary heart disease. 3, hypertension: hypertension is closely related to the formation and development of coronary atherosclerosis systolic blood pressure is a better predictor of coronary events than diastolic blood pressure. 140-149 mmhg systolic blood pressure is more likely to increase the risk of coronary death than 90-94 mmhg diastolic blood pressure. 4, smoking: smoking is an important risk factor for coronary heart disease, is the single most avoidable cause of death between coronary heart disease and smoking there is a significant dose-response relationship. 5, diabetes: coronary heart disease is the primary cause of death in immature diabetic patients, coronary heart disease accounts for nearly 80% of all causes of death and hospitalization in diabetic patients. 6, obesity: has been clearly for the primary risk factors of coronary heart disease, can increase the mortality of coronary heart disease obesity is defined as body mass index (BMI = weight (kg) / height squared (m2)) in men > = 27.8, women > = 27.3. BMI and TC, TG increase, HDL-C decline is positively correlated. 7, sedentary lifestyle: the risk of coronary heart disease and death will be doubled in people who do not like to exercise.8 There are also genetic, alcohol consumption, environmental factors, etc.