20 MinutesBlood pressure and heart rate decrease.
8 HoursOxygen level goes back to normal and carbon monoxide levels drop.
48 HoursChances of having a heart attack decreases and sense of smell and taste start improving.
72 HoursBronchial tubes have restarted their cleaning mechanism, so breathing is easier.
2 Weeks to 3 MonthsCirculation improves, exercising becomes easier and lung capacity can increase by as much as 30%.
6 MonthsImprovements in coughing, sinus congestion, tiredness, shortness of breath and colds.
1 Year50% reduction in risk of smoking-related heart attack.
5 YearsRisk of having a stroke is now reduced to that of a non-smoker.
+10 YearsRisk of dying from lung cancer will decrease by half.
15 YearsRisk of dying from a heart attack is the same as a person who has never smoked.