When Smokers Quit: The Benefits of Quitting Over Time

20 minutes after quitting

Your heart rate and blood pressure drops.

12 hours after quitting

The carbon monoxide level in your blood drops to normal.

2 weeks to 3 months after quitting

Your circulation improves and your lung function increases.

1 to 9 months after quitting

Coughing and shortness of breath decrease; cilia (tine hair-like structures that move mucus out of the lungs) regain normal function in the lungs, increasing the ability to handle c mucus, clean the lungs, and reduce the risk of infection.

1 year after quitting

The excess risk of coronary heart disease is half that of a smoker’s.

5 years after quitting

Your stroke risk is reduced to that of a nonsmoker 5 to 15 years after quitting.

10 years after quitting

The lung cancer death rate is about half that of a continuing smoker’s.  The risk of cancer of the mouth, throat, esophagus, bladder, cervix and pancreas decrease.

15 years after quitting

The risk of coronary heart disease is that of a non-smoker’s.

Source:  American Cancer Society – www.cancer.org