Acute heart attack mostly occurs on the basis of coronary atherosclerosis, due to certain triggers resulting in the rupture of coronary atherosclerotic plaque, blocking the coronary lumen, resulting in myocardial ischemic necrosis. The common triggers are as follows: 1, overexertion, the elderly go upstairs due to overexertion prone to sudden chest tightness, chest pain, resulting in heart attack; 2, overeating; 3, heavy drinking, excessive smoking; 4, excitement, intense emotional changes prone to induce heart attack; 5, constipation, common in the elderly, constipation due to forceful breath-holding and lead to heart attack.