1, age, gender: the disease is clinically most common in middle-aged and elderly people over 40 years of age, and in recent years there is a trend of younger onset. Women have an increased incidence after menopause. 2, patients with hyperlipidemia: especially cholesterol and LDL elevation has a greater impact. 3, hypertensive patients: hypertensive patients suffer from this disease is 3 to 4 times higher than those with normal blood pressure. And a sudden rise in blood pressure can easily lead to unstable angina, acute myocardial infarction, etc. 4, smokers: smoking is second only to hyperlipidemia and hypertension on adverse cardiovascular effects, is the third major risk factor for coronary heart disease. And is proportional to the number of cigarettes smoked per day; studies have concluded that passive smoking has the same risk. 5, diabetes and abnormal glucose tolerance: Diabetic patients not only have several times higher incidence of coronary heart disease than non-diabetic patients, and the lesions progress rapidly. Patients with reduced glucose tolerance are also very common to get coronary heart disease. 6, (1) obese patients; (2) engaged in physical activities less, mental activities, often have a sense of urgency; (3) overeating, often into a higher calorie, containing more animal fat, cholesterol, sugar and salt food; (4) genetic factors: patients with a family history of cardiovascular disease; (5) impatient, competitive and competitive, not good at combining work and rest type A personality; these people These people have a much higher risk of coronary heart disease than the general population and should pay special attention to prevention and control in general.