If the patient is in the acute stage of myocardial infarction, because of partial myocardial necrosis, the patient should lie in bed and rest. The diet should be light and easy to digest, and the amount of food eaten each time should not be too much to prevent aggravating the load of gastrointestinal tract and heart. If the patient does not have diabetes, he can eat more vegetables and fruits to promote gastrointestinal peristalsis and avoid dry stool. During the recovery period of myocardial infarction, the patient can exercise appropriately according to the recovery of cardiac function, and his diet should be light, low salt, low fat, and eat more vegetables and fruits. Smoking and drinking should be eliminated because both smoking and drinking can lead to the instability of atherosclerotic plaque in the coronary artery, even the possibility of rupture, causing the recurrence of myocardial infarction, and drinking can easily affect the heart function, easily induce arrhythmia, and even may lead to sudden death.