Beneficial Health Changes

Time since quitting

Beneficial health changes that take place

20 minutes Blood pressure and pulse rate return to normal.
8 hours Oxygen levels return to normal. Carbon monoxide levels in blood drop to normal.
24 hours Lungs start to clear out mucus and other smoking debris.
Chance of heart attack decreases.
48 hours Nerve endings start regrowing. Ability to taste and smell is greatly improved.
72 hours Breathing becomes easier. Bronchial tubes begin to relax and energy levels increase.
2 – 12 weeks Circulation improves. Walking becomes easier.
3 – 9 months Coughs, wheezing, and breathing problems improve as lung function increases up to 30%.
1 year Risk of a heart attack falls to about half that of a smoker.
10 years Risk of lung cancer falls to that of a non-smoker.
15 years Risk of heart attack falls to the same as someone who has never smoked.

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