Smoking

FAQ
Smoking directly causes 12 different cancers (and contributes to your risk of many others) and increases the risk of heart disease, stroke, respiratory illnesses, type 2 diabetes, and many other health problems.
Nicotine triggers the brain’s reward system, which makes it highly addictive. This can lead to nicotine withdrawal symptoms if you stop using it. The drug also increases heart rate and blood pressure by triggering the release of adrenalin.
Quitting smoking can result in improved cardiovascular health, better lung function, lower overall risk of early death, and reduced risk of lung cancer over time. The younger you are when you quit smoking, the greater the benefit.
Nicotine replacement therapy, medication, and counseling can help you quit smoking. A procedure called transcranial magnetic stimulation may help in the short term. Doctors may recommend a combination of these approaches. Other resources include apps as well as free text and phone services.
Secondhand smoke doesn’t increase the risk of smoking-related problems as much as smoking cigarettes yourself. However, they can cause health problems that are similar to smoking, such as increasing cancer risk, especially in children.

David Mannino, MD
Medical Reviewer
David Mannino, MD, is the chief medical officer at the COPD Foundation. He has a long history of research and engagement in respiratory health.
After completing medical training as ...

Justin Laube, MD
Medical Reviewer
Justin Laube, MD, is a board-certified integrative and internal medicine physician, a teacher, and a consultant with extensive expertise in integrative health, medical education, a...

Robert Jasmer, MD
Medical Reviewer
Robert Jasmer, MD, is board certified in internal medicine, pulmonary disease, and critical care medicine. He is in private practice in Burlingame, California, where he specializin...

Kelly Kennedy, RDN, LDN
Medical Reviewer
Kelly Kennedy is a licensed dietitian-nutritionist with over 14 years of experience in digital media. She previously managed and oversaw nutrition content, recipe development, meal...

Heidi Green, MD
Medical Reviewer

Michael S. Niederman, MD
Medical Reviewer
Michael S. Niederman, MD, is the lead academic and patient quality officer in the division of pulmonary and critical care medicine at Weill Cornell Medical Center in New York City;...
- Cigarette Smoking. Centers for Disease Control and Prevention. September 17, 2024.
- Benefits of Quitting Smoking. Centers for Disease Control and Prevention. May 15, 2024.
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