Angina pectoris is a group of clinical syndromes in which anterior chest pressure pain, lasting about several minutes, is caused by insufficient blood supply to the coronary arteries. Angina occurs when the blood supply of the coronary arteries is in conflict with the blood demand of the myocardium, and the coronary blood flow cannot meet the metabolic needs of the myocardium, causing acute and temporary ischemia and hypoxia of the myocardium. Angina is often manifested as pain in the anterior chest region, mainly located in the retrosternal or precordial region and radiating to the left shoulder and left forearm, and so on, which can explain the many different types of angina. So, how can patients prevent angina pectoris causing anterior chest pressure pain? The following is a brief introduction: 1, healthy diet life to prevent angina pectoris. Dietary prevention of angina must be limited to foods rich in animal fat and cholesterol, such as avoiding excessive greasy diet, eat less animal offal; avoid a meal too full; smoking can cause and aggravate coronary heart disease, leading to angina, should resolutely quit smoking; limit alcohol; avoid great joy, great sadness, high tension, depression, anxiety, anger and other adverse mental emotional stimulation. Because angina is often a chronic and long-term attention to the disease, patients should properly understand the nature of the disease, treat it correctly, eliminate unnecessary anxiety and fear, and cultivate optimism. Prevention of angina at the same time pay attention to the protection of climate change, pay attention to warmth, avoid to the cold, heat, windy environment life and activities. 2. Treatment of combined diseases. Hypertension, infection, anemia and hyperthyroidism, constipation and other diseases can increase the burden on the heart and aggravate angina pectoris, should be actively treated. Correction of hypotension, shock; various arrhythmias can trigger or aggravate angina, need to try to correct; active treatment of diabetes, hyperlipidemia, from the etiology to prevent the occurrence of coronary heart disease. 3, work and rest rules, combined with work and rest. Excessive exertion can easily lead to angina, prevent excessive mental stress and heavy physical labor, ensure sufficient sleep time. First attack or attack suddenly become frequent and aggravated, prevention of angina should be in a quiet environment for short-term rest and convalescence. Prevention of angina avoid too fast or sudden forceful movements in daily life, such as chasing a bus or walking fast or for a long time in high winds or on snow. In any situation where there is an attack of angina, stop the activity immediately and rest quietly.