Lagos E. Cardiovascular Centre Did you know quitting smoking can cut your risk of heart disease by nearly half? Scientific research shows that within five years of Instagram The Disturbing Link between Heart Disease and Smoking Vasoconstriction: What Is It, Causes, Signs, Symptoms, and More Osmosis Smoking affects the heart long before symptoms appear. Each cigarette delivers chemicals that enter the bloodstream within seconds, reaching the heart and blood vessels almost immediately. These substances damage the inner lining 1. I quit cigarettes by switching to vaping so now Im protecting my heart and lungs. , Switching isnt quitting. Its just a different delivery system. Vaping still stresses your heart and blood