Question: how long after quitting smoking does heart health improve?
Answer: 2-12 weeks, your circulation improves and your lung function increases. 1-9 months, coughing and shortness of breath decrease. 1 year, your risk of coronary heart disease is about half that of a smoker's. 5 years, your stroke risk is reduced to that of a nonsmoker 5 to 15 years after quitting.