The causes of acute myocardial infarction are as follows: 1, the presence of high blood lipids, high blood pressure, high blood sugar and other risk factors, resulting in the deposition of blood lipids in the blood vessel wall, causing the narrowing of the blood vessel wall; 2, the presence of smoking, alcohol abuse, lack of physical activity and other bad habits; 3, arterial vascular wall deformity, inflammation of the blood vessel wall or vascular spasm resulting in narrowing of the blood vessel; 4, the presence of emotional excitement, overexertion, work-related stress, such as the causative factors; 5, the presence of satiety or after eating oily food, the slowing of the blood flow, which triggered the heart’s blood supply insufficiency.