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Quitting smoking is probably the most important step you can take to decrease your chance of coronary artery disease (CAD) and a heart attack. Smoking raises your risk of getting CAD and dying early from CAD.
Carbon monoxide, nicotine, and other substances in tobacco smoke can promote atherosclerosis and trigger symptoms of coronary artery disease. Smoking:
Smoking also affects those around you. Secondhand smoke increases other people's risk of coronary artery disease.
Your risk for CAD drops relatively soon after you quit smoking. After your first year of not smoking, your risk of heart disease decreases by half. Also, your risk of having a heart attack decreases when you stop smoking.1
When you quit smoking, you cut your risk of death even more by staying away from cigarettes for good. After 15 years of not smoking, your risk of death from heart disease is the same as if you had never smoked at all.1
If you have had angioplasty or coronary artery bypass graft surgery to repair narrowed or blocked arteries, quitting smoking can decrease the risk of those arteries narrowing again. Your doctor will urge you to quit smoking so you get the most benefit from these procedures.
Medicines and counseling can help you quit smoking. Talk with your doctor about ways to quit for good.
For more information, see the topic Quitting Smoking.
- U.S. Department of Health and Human Services (2010). A Report of the Surgeon General: How tobacco smoke causes disease: The biology and behavioral basis for smoking-attributable disease. Available online: http://www.surgeongeneral.gov/library/tobaccosmoke/report/full_report.pdf.
Other Works Consulted
- Roger VL, et al. (2011). Heart disease and stroke statistics—2012 Update: A report from the American Heart Association. Circulation, 125(1) e2–e220.
|Primary Medical Reviewer||Rakesh K. Pai, MD, FACC - Cardiology, Electrophysiology|
|Specialist Medical Reviewer||John A. McPherson, MD, FACC, FSCAI - Cardiology|
|Last Revised||April 6, 2012|
Last Revised: April 6, 2012
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