The quitting smoking timeline varies from person to person, but generally follows a similar pattern:
20 minutes: Blood pressure and heart rate drop.
12 hours: Carbon monoxide levels in the blood decrease.
2 weeks to 3 months: Circulation improves, lung function increases, and physical activity becomes easier.
1 to 9 months: Coughing and shortness of breath decrease as lung function continues to improve.
1 year: The risk of heart disease is halved compared to a smoker’s risk.
5 years: Stroke risk is similar to that of a non-smoker.
10 years: The risk of lung cancer is halved compared to that of a continuing smoker, and the risk of other cancers decreases further.