In the early stage of coronary atherosclerosis, there are usually no obvious symptoms. If coronary atherosclerosis leads to further development of vascular stenosis and the degree of stenosis exceeds 50%, it can be diagnosed as coronary heart disease. If the blood vessel stenosis develops further, it will cause the manifestation of myocardial ischemia and hypoxia, and some patients may experience chest tightness, palpitations, decreased activity endurance, angina pectoris, and in severe cases, even vascular occlusion, causing myocardial infarction. In case of coronary atherosclerosis, the first step is to intervene in lifestyle, with proper exercise, low-fat diet, and if patients have diabetes, they must control their blood sugar in the normal range, or close to the normal acceptable range. In addition, we should quit smoking and limit alcohol, keep our mood relaxed, avoid strain and mental tension, and avoid staying up late. Patients with high blood lipids must have their blood lipids monitored regularly, or take statins to reduce LDL, and obese patients must actively lose weight to reduce the load on the heart.