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. Author manuscript; available in PMC: 2017 Jun 1.
Published in final edited form as: Periodontol 2000. 2016 Jun;71(1):52–64. doi: 10.1111/prd.12120

Table 4.

Short and Long Term Benefits of Tobacco Smoking Cessation

Short-Term Benefits
 24 hours after quitting: chance of a heart attack decreases
 48 hours after quitting: ability to smell and taste is enhanced
 2 weeks to 3 months after quitting: circulation improves, walking becomes easier, and lung function improves
Long-Term Benefits
 1 year after quitting: excess risk of coronary heart disease is halved
 5 years after quitting: stroke risk reduces to that of a never-smoker
 10 years after quitting: lung cancer risk is halved
 15 years after quitting: risk of coronary heart disease and death is similar to that of a never-smoker

Source: United States Department of Health and Human Services. The health benefits of smoking cessation (131).