Coronary artery disease is not terrible if patients understand it correctly, pay attention to it, and treat it scientifically and with standard treatment. Coronary heart disease, known as coronary atherosclerotic heart disease, is mainly related to high blood pressure, followed by poor control of blood lipids and blood sugar and other high-risk factors. After improving lifestyle, actively controlling and treating the primary disease, and correcting myocardial ischemia, the heart function can generally be better improved.1. Improve lifestyle: staying up late, obesity, high-salt diet and smoking are all risk factors that trigger coronary heart disease. Patients with coronary heart disease can reduce the cardiovascular load and improve the prognosis of coronary heart disease by regular work and rest, weight loss, low oil, low salt diet, smoking and alcohol, etc. in daily life according to their own conditions, which can reduce the risk of acute morbidity; 2. Once diagnosed, you should actively cooperate with your doctor to treat your blood pressure, blood lipids and blood sugar within a reasonable range. If coronary heart disease has been diagnosed, you should actively treat the primary disease causing the coronary heart disease. Do not stop or cut off medication on your own, or use food or prescription instead of medication; 3. Correct myocardial ischemia: If patients with coronary heart disease have symptoms of myocardial ischemia, such as exertional chest tightness and shortness of breath, they need to apply medication under the guidance of cardiologists or timely interventional treatment to avoid acute heart attack. The life cycle as well as the quality of life of patients with coronary heart disease can be improved to a certain extent after active treatment, but if the treatment is not timely or if the compliance is too poor and the treatment is not cooperated, it may lead to the occurrence of life-threatening diseases such as acute heart attack and aortic dissection with serious consequences.