Coronary heart disease is based on coronary atherosclerosis, smoking is a risk factor for coronary atherosclerosis, which can promote the occurrence of coronary atherosclerosis and cause coronary heart disease, and sudden cessation of smoking will not lead to coronary heart disease.
Smoking can cause endothelial damage, promote platelet aggregation in the vicinity of the blood vessel wall, elevate blood lipids and thus increase the risk of coronary atherosclerosis. In addition, nicotine in tobacco can directly cause coronary artery spasm and myocardial injury, thus promoting the occurrence and development of coronary heart disease.
Quitting smoking helps to reduce the harmful effects of toxic substances in tobacco on the cardiovascular system, reduces the risk of coronary heart disease, helps to prevent lung cancer, chronic obstructive pulmonary disease and other lung diseases, and does not lead to coronary heart disease even if you quit smoking suddenly. Thus, it is recommended to quit smoking as early as possible.