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How quickly will I see benefits from quitting smoking?

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After 20 minutes of not smoking:

After 12 hours:

After 2 weeks to 3 months:

After a year:

After five years:

  • Your blood pressure and pulse rate begin to go down
  • Circulation and the temperature of your hands and feet begin to go up.
  • The carbon monoxide level in your blood returns to normal.
  • Your body circulates blood better
  • Your lungs function better
  • Your risk of heart disease goes down to half that of a smoker's risk.
  • Your risk of getting mouth, throat, or esophagus cancer drops to half that of a smoker.

From: Asthma and Smoking WebMD Medical Reference

SOURCES:  American Academy of Allergy, Asthma & Immunology: "No Butts About It: Smoking Makes Asthma Worse." Medscape: "Got Asthma? Quit Smoking." American Lung Association: "Quit Smoking." Health Resources and Services Administration: "Smoking Cessation." FDA: "FDA 101: Smoking Cessation Products."

Reviewed by Louise Chang on April 17, 2018

SOURCES:  American Academy of Allergy, Asthma & Immunology: "No Butts About It: Smoking Makes Asthma Worse." Medscape: "Got Asthma? Quit Smoking." American Lung Association: "Quit Smoking." Health Resources and Services Administration: "Smoking Cessation." FDA: "FDA 101: Smoking Cessation Products."

Reviewed by Louise Chang on April 17, 2018

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What does it feel like when you first quit smoking?

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THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

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