(1) Walking is the best form of exercise. Initially, you can hold objects and walk around the house and around the house. If you are able to do so, you can gradually increase the intensity of your activities, such as walking and jogging, avoiding sports such as race walking, basketball, tennis and weight lifting. (2) It is recommended that you exercise daily and no less than four times a week. (3) Early after discharge, determine the duration of exercise according to your own feelings, and gradually and progressively lengthen it. Before exercise, you can stretch, bend, move your limbs and other preparatory activities for 5 minutes. Then exercise, such as walking, climbing stairs, etc., an exercise time should not be too long, can be divided into several exercises, such as exercise 5 minutes rest 5 minutes, but the total exercise time should be greater than 30 minutes. Do not stop abruptly after exercise, you can move your limbs again, about 5 minutes of activity. (4) The most appropriate intensity of exercise is: slight sweating during exercise, slightly fast breathing, slightly fatigued, but still able to carry on a conversation, conversation is not accompanied by shortness of breath. (5) If chest pain, asthma or fatigue occurs during exercise or exercise, stop immediately. The heart may feel particularly fast during the activity. If the heart beats regularly, do not worry too much. If the heart suddenly loses control or beats too fast with mild dizziness, weakness and irregular pulse, contact your doctor. (6) Do not exercise on an empty stomach or after a full meal. It is best to exercise one hour after waking up in the early morning or after dinner. Do not take a shower within 1 hour after exercise, and do not lock the door when taking a shower so that you can get timely assistance in case of angina attack.