Heart attack is myocardial infarction, ischemic necrosis of the myocardium, there may be and embolus obstruction, lumen narrowing, vascular elasticity deterioration reasons related to, can be prevented through smoking cessation, light diet, emotional control, maintain a suitable temperature and other methods. 1. Quit smoking: Cigarettes contain nicotine and other toxic substances. Long-term smoking may lead to endothelial damage, thereby reducing the elasticity of blood vessels and inducing myocardial infarction, so quitting smoking can prevent myocardial infarction to a certain extent. 2. Light diet: When taking greasy food such as fried, barbecue, etc., it may lead to the elevation of blood fat. Excess fat adheres to the walls of blood vessels, which may lead to atherosclerosis of blood vessel walls, resulting in the formation of blood clots. A light diet can prevent atherosclerosis, thus preventing myocardial infarction. 3. Mood control: when mood swings, the nerves that govern vasoconstriction may lead to continuous contraction of the coronary arteries and induce myocardial infarction. Therefore, keeping a good mood can prevent the occurrence of myocardial infarction. 4. Keep the temperature suitable: when the weather is cold, it may lead to coronary artery spasm and make the blood supply to the heart reduce sharply, thus leading to myocardial infarction. Therefore, timely increase or decrease of clothing can prevent the occurrence of myocardial infarction. Heart attack patients should go to the hospital in a timely manner, under the guidance of the doctor targeted treatment, so as not to delay the condition.