Acute myocardial infarction is mainly caused by middle-aged and elderly people, and the common triggers are excessive fatigue, cold, emotional excitement, full meals, continuous stressful work, etc. For different triggers, the main points of care in life are different. Pay attention to climate change and keep warm: low temperature, windy and rainy weather are the triggers of acute myocardial infarction attack, patients with coronary heart disease should pay attention to keep warm, especially in autumn and winter, should reduce the number of times to go out, if necessary, under the guidance of doctors to add drugs. Second, everything within limits, do not lift heavy things: lifting heavy things or holding your breath to defecate is a common cause of myocardial infarction in elderly patients with coronary heart disease, patients should act within limits, do not bend over and hold your breath and other actions! Third, maintain a calm state of mind and reduce stimulation: elderly patients with coronary heart disease can listen to light music, calligraphy, painting and other emotional activities to maintain a calm state of mind, appropriate walking, tai chi, gymnastics and other activities. Fourth, pay attention to the identification of aura, timely treatment: 70% of patients with acute myocardial infarction have aura symptoms before the onset, such as angina pectoris lasting longer than before, pain more intense than before; elderly patients with coronary heart disease sudden onset of heart failure, shock, respiratory distress, etc.