when smokers quit
Within 20 minutes of smoking that last cigarette, the body begins a series of changes that continues for years.
20 minutes
Blood pressure drops to normal, Pulse rate drops to normal, Body temperature of hands and feet increases to normal
8 hours
Carbon monoxide level in blood drops to normal, Oxygen level in blood increases to normal
24 hours
Chance of heart attack decreases
48 hours
Nerve endings start regrowing
Ability to smell and taste is enhanced
2 weeks to 3 months
Circulation improves
Walking becomes easier
Lung function increases up to 30%
1 to 9 months
Coughing, sinus congestion, fatigue, shortness of breath decrease