Body Recovery Timeline After Quitting Smoking

What happens to your body in the hours, days, and months after you quit smoking. A science-backed timeline of recovery milestones.

April 25, 2025 By Editorial Team

Your body begins to recover within minutes of your last cigarette. Here’s what science says happens at each stage.

Your heart rate and blood pressure drop to more normal levels.

The carbon monoxide level in your blood drops to normal, and your blood oxygen level increases.

Circulation improves and lung function increases.

Coughing and shortness of breath decrease. Cilia (tiny hair-like structures that move mucus out of the lungs) regain normal function.

Your risk of coronary heart disease is about half that of a smoker.

Your stroke risk is reduced to that of a non-smoker (5–15 years after quitting).

Your lung cancer death rate is about half that of a person who continues smoking.

Your risk of coronary heart disease is the same as a non-smoker’s.