What role does smoking cessation play in preventing recurrent ACS?

Smoking cessation plays a crucial role in preventing recurrent acute coronary syndrome (ACS) primarily because it significantly decreases the likelihood of developing cardiovascular disease. Tobacco smoke contains numerous harmful substances that lead to the development of atherosclerosis, the buildup of plaques in arteries, which is a major contributor to heart diseases including coronary artery disease and recurrent ACS.

When an individual quits smoking, the body begins to heal, and the risk factors for cardiovascular diseases, such as increased blood pressure and elevated cholesterol levels, can improve. Research has consistently shown that patients who stop smoking after an ACS event reduce their risk of a subsequent cardiac event significantly. This improvement can be attributed to the decrease in the adverse effects of nicotine and other chemicals present in cigarettes, leading to better vascular health and improved endothelial function.

In contrast, the other statements fail to capture the significant benefits of smoking cessation. There are established benefits to heart health from quitting smoking, and it does not merely benefit lung health or have no effect at all; rather, it has profound implications for reducing complications and improving overall cardiovascular health. Smoking cessation is one of the most impactful lifestyle changes individuals can make to promote heart health and prevent future incidents of ACS.