Heart bypass is short for coronary artery bypass grafting. After the operation, attention should be paid to maintaining regular living habits, good diet, appropriate activities and always have emergency medication. 1. Live a regular life and avoid excessive mental stress and emotional fluctuations. 2. Eat a balanced diet with mixed grains and beans, less fatty meat and animal offal, more green vegetables and fruits, quit smoking and drinking, and less sugary drinks. 3. Appropriate activities, such as walking, playing tai chi and so on. 4. Keep angina-relieving medications on hand for emergency use. If the pain persists or is not relieved by medication, consult a doctor immediately. After heart bypass surgery, you should pay attention to the protection, regular review, and consult the doctor if you have chest pain and other symptoms.