You can’t continue to smoke after a heart attack. 1. Smoking damages the endothelial function of blood vessels, which can lead to the occurrence of atherosclerosis, narrowing the lumen of arterial blood vessels, blocking arterial blood flow, and triggering a variety of cardiovascular and cerebrovascular diseases; there is sufficient evidence to show that smoking can lead to coronary heart disease, stroke and peripheral arterial disease, and quitting smoking can significantly reduce the incidence of these diseases and the risk of death. 2. After the formation of coronary atherosclerosis caused by prolonged smoking, when the plaque falls off and blocks the blood vessels of the heart, it may lead to the occurrence of myocardial infarction; therefore, no matter whether it is in the acute stage or the stable stage after the infarction, smoking cessation should be made in time, so as to prevent the possibility of infarction from recurring, and at the same time adhere to the antiplatelet therapy, blood pressure and blood lipid control, which are all able to effectively prevent the infarction. If you feel unwell, you should go to the hospital in time and consult your physician.