It is clinically believed that maintaining a long-term healthy lifestyle is more important for the prevention of coronary heart disease. Patients with coronary artery disease should take the following precautions: 1) maintain emotional stability; 2) increase physical exercise; 3) adjust the diet structure and consume low-salt, low-fat and low-calorie foods; 4) quit smoking and limit alcohol, because smoking is an important factor in triggering coronary artery disease, and the probability of coronary artery disease among smokers is 2-6 times that of non-smokers; 5) patients with hypertension, hyperglycemia and hyperlipidemia need to control blood pressure, blood sugar and blood pressure, blood sugar and lipids.