Coronary heart disease patients can not drink a small amount of alcohol, because a small amount of alcohol will also have alcohol intake, alcohol intake will occur when the heart of a variety of abnormalities occur, including the following: 1, a small amount of alcohol will stimulate the heart of the sympathetic nerves, so that the excitability of the increase, so that the blood pressure increases, although in the process of drinking alcohol blood pressure will be a transient decrease, because of the metabolites in the alcohol acetaldehyde dilation of capillaries, resulting in the Blood pressure is transiently low, but after the excretion of acetaldehyde, blood vessels will reflexively contract, resulting in a further increase in blood pressure than before drinking, hypertension is unfavorable to patients with coronary artery disease. 2, alcohol consumption will appear lipid metabolism, resulting in disorders of fat metabolism in the body, there will be lipids accumulated in the body, once the patient’s lipids are elevated significantly, there will be a worsening of coronary artery disease. 3, alcohol consumption will have an impact on cardiac myocytes. It will make the myocardial contractility decrease, heart rate accelerate, the heart’s oxygen consumption increase, easy to induce heart failure.