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Quitting Smoking After a Heart Attack

HCA image for aging hearts You have just survived a heart attack. It is not likely you would want to experience that again. Reducing your risk of another episode and working your way toward improved health will require commitment, discipline, and some sacrifices. One such sacrifice should be quitting smoking.

Why quit smoking after a heart attack? Continuing to smoke doubles your risk of having a second heart attack. It is never too late to quit. Your risk of a heart attack is already lowered within 24 hours after quitting.

What Smoking Does to Your Heart

How does smoking affect your heart? Smoking works in conjunction with other heart-related risk factors. Smoking contributes to:

What Quitting Can Do for You

In addition to lowering your chance of another heart attack, here are other health benefits of quitting smoking:

Live Longer

If you are a smoker aged 65-69 years, quitting may increase your life expectancy by 1-4 years. If you are aged 35-39, 6-9 years are added to your life expectancy.

Lower Your Risk of Heart and other Diseases

By quitting, you decrease your risk of death from heart disease by 50% or more. In addition to heart-related diseases, quitting will also reduce the chances of several other diseases.

Feel Healthier, Look Better

After quitting, you may notice that lingering symptoms that occur in smokers, like a cough or sore throat, will not be as bothersome or occur less often. You may also notice that you have more energy. Kicking the habit can also prevent face wrinkles, stained teeth, and smelly clothes and hair. Moreover, your sense of taste and smell will also improve.

When you quit, your body begins to heal itself right away. Your heart rate and blood pressure will lower. After 12 hours, carbon monoxide levels in your blood drop to normal. That is just the beginning. In addition to the improvement in your lung function, the risk of heart disease falls in line with that of a nonsmoker.

Ready to Quit?

If you are ready to quit smoking, talk with your doctor about the best approach for you. Approaches may include trying different ways to fight cravings, taking smoking cessation medications, and meeting with a support group or counselor. There may be several or a combination of approaches you will use before finding what works for you. But it is important that you take the initiative to quit and not give up. Doing so may ensure that your first heart attack is your last.


American Heart Association



Health Canada

The Lung Association


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Gerber Y, Rosen LJ, Goldbourt U, Benyamini Y, Drory Y; Israel Study Group on First Acute Myocardial Infarction. Smoking status and long-term survival after first acute myocardial infarction a population-based cohort study. J Am Coll Cardiol. 2009;54(25):2382-2387.

Health effects of smoking. Centers for Disease Control and Prevention website. Available at: Updated May 15, 2017. Accessed July 13, 2017

Heart attack recovery FAQs. American Heart Association website. Available at: Updated September 19, 2016. Accessed July 13, 2017.

Smoking cessation strategies for hospitalized patients. EBSCO DynaMed Plus website. Available at: Updated April 11, 2016. Accessed July 13, 2017.

Taking care of yourself. American Heart Association website. Available at: Updated August 29, 2016. Accessed July 13, 2017.

What happens when you quit? Smokefree—NHS website. Available at: Accessed July 13, 2017.

Last reviewed July 2017 by EBSCO Medical Review Board Michael Woods, MD, FAAP