Within 20 minutes of quitting smoking, your heart rate and blood pressure drop
And if you have not smoked for 12-hours, carbon monoxide level in your blood drops to normal
Circulation improves and your lung function increases
Coughing and shortness of breath decrease for a person who has quit smoking
Risk of coronary heart disease is about half that of a smoker's
Stroke risk is reduced to that of a nonsmoker 5 to 15 years after quitting smoking
Risk of lung cancer falls to about half of that of a smoker and your risk of cancer of the mouth, throat, esophagus, bladder, cervix, and pancreas decreases