Myocardial infarction is an acute and critical condition due to occlusion of coronary arteries and interruption of blood flow, resulting in localized necrosis of part of the myocardium due to severe and persistent ischemia and hypoxia. Recently, the onset of the disease is a younger trend. Once a heart attack or highly suspected heart attack, the ordinary people can do the following: a. Early identification of heart attack The typical manifestation of heart attack is chest pain, most people will feel severe, persistent pain in the chest, difficult to breathe, change position and can not be relieved, often feel irritable, fear, can be accompanied by sweating, and even the pain radiates to the left upper limb or the left back. Usually lasts more than 30 minutes (angina pectoris usually does not exceed 15 minutes). At this time: 1, should the patient should be lying down or half lying down, and pacify and stabilize emotions, reduce activities. 2, the first time to call 120 emergency telephone, and can not go to the hospital by themselves, because the patient is easy to aggravate the condition after the activity. 3, if the side with fast-acting heart pills or nitroglycerin, etc., in the case of blood pressure is not low, you can immediately sublingualization. But more relief is not as obvious as angina. 4, if the digestive tract does not have bleeding and other contraindications, you can immediately oral Bay aspirin, while taking lipid-regulating drugs such as atorvastatin, resuvastatin and so on. Second, usually focus on prevention, pay attention to the treatment of concurrent risk factors Coronary heart disease is prone to occur in the following groups: 1, long-term heavy smokers. 2, diabetic patients. 3, high blood fat people. 4, long-term high blood pressure people. 5, overweight, lack of exercise. 6, long-term stress, irregular work and rest people. Therefore, to quit smoking, reduce weight, while treating high blood lipids, high blood pressure and high blood sugar, and to achieve the standard control within the normal range (specific need for doctors to formulate a program based on the patient’s condition, rather than just look at the reference range), so as to reduce or delay the occurrence of adverse cardiovascular events (angina pectoris, myocardial infarction). In conclusion, timely detection of heart attack and effective and regular treatment is the key, and do not believe in biased prescriptions or rumors, as soon as possible to call the 120 emergency number to wait for professional medical care is particularly important.