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Smoking and How to Quit
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Smoking and How to Quit

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What Happens When You Quit Smoking?

This tool shows how your body begins to heal as soon as you quit smoking

If you quit smoking right now, at 11:05 AM (EST) on September 2, 2010, here is what will begin to happen immediately:

11:25 AM (in 20 minutes): Your heart rate drops.

11:05 PM (in 12 hours):
The carbon monoxide (a gas that can be toxic) in your blood drops to normal.

Sep. 16, 2010 - Dec. 2, 2010 (in 2 weeks to 3 months): Your heart attack risk begins to drop and your lungs are working better.

Oct. 2, 2010 - Jun. 2, 2011 (in 1 to 9 months): Your coughing and shortness of breath decrease and your lungs start to function better, lowering your risk of lung infection.

Sep. 2, 2011 (in 1 year): Your risk for heart disease is half that of a smoker's.

Sep. 2, 2015 (in 5 years): Your risk of having a stroke is the same as someone who doesn't smoke.

Sep. 2, 2020 (in 10 years): Your risk of dying from lung cancer is half that of a smoker's. Your risk of cancer of the mouth, throat, esophagus, bladder, kidney, and pancreas also decreases.

Sep. 2, 2025 (in 15 years): Your risk of heart disease is now the same as someone who doesn't smoke.

Content last updated May 19, 2010.

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