| 20 Minutes |
Blood pressure and pulse rate drop to normal; body temperature of hands and feet increase to normal. |
| 8 Hours |
In the blood, carbon monoxide drops to normal and oxygen increases to normal. |
| 24 Hours |
Chance of heart attack decreases. |
| 48 Hours |
Nerve endings start regrowing and ability to smell and taste is enhanced. |
| 2 Weeks - 3 Months |
Circulation improves, walking is easier and lung function efficiency increases. |
| 1-9 Months |
Coughing, sinus congestion, fatigue and shortness of breath decrease. |
| 1 Year |
Excess risk of coronary heart disease is half that of a smoker. |
| 5 Years |
Lung cancer death rate (1 pack/day smoker) decreases by almost half. Stroke risk is reduced to that of a nonsmoker after 5-15 years. Risk of cancer of mouth, throat and esophagus is half that of smoker's. |
| 10 Years |
Lung cancer death rate similar to nonsmokers, precancerous cells replaced, risk of cancer of bladder, kidney and pancreas decreases. |
| 15 Years |
Risk of coronary heart disease is that of a nonsmoker. |
