What Happens When You Quit Smoking



You might be wondering what happens when you quit smoking! Within 20 minutes of smoking your last cigarette, your body begins a series of changes that continues for years. Many benefits are lost by smoking just one cigarettea day.

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 percent
1 to 9 Months
  • Coughing, sinus congestion, fatigue,and shortness of breath decrease
  • Cilia regrow in lungs, increasing their ability to handle mucus, clean the lungs and reduce infection
  • Body’s overall energy increases
1 Year
  • Excess risk of coronary heart disease is half thatof a smoker
5 Years
  • Lung-cancer death rate for average former smoker(one pack a day) decreases by almost half
  • Stroke risk is reduced to that of a non-smoker
5 to 15 years after quitting
  • Risk of cancer of the mouth, throat and esophagusis half that of a smoker’s
10 Years
  • Lung-cancer death rate is similar to that of a non-smoker
  • Precancerous cells are replaced
  • Risk of cancer of the mouth, throat, esophagus, bladder, kidney, cervix and pancreas decreases
15 Years
  • Risk of coronary heart disease is that of a non-smoker

Source: American Cancer Society

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