11/12/2025
Quitting smoking is the single most important step you can take for your lung health.
Smoking causes 80-90% of lung cancer deaths in the United States. While not all lung cancers are preventable, the most critical action you can take to lower your risk—at any age—is to never start smoking, or to quit today.
The good news? Quitting works! When you stop, your damaged lung tissue starts to repair itself.
November is , and our expert, WashU Medicine thoracic surgeon Bryan Meyers, MD, MPH, joined us to discuss the health-saving benefits of quitting.
As a surgeon, Dr. Meyers encourages patients to stop smoking, especially before surgery, because it reduces risks and complications during surgery. Beyond that, the immediate and long-term benefits of quitting smoking are numerous:
— Within 20 minutes, your heart rate drops. Within 12 hours, the carbon monoxide level in your blood drops to normal.
— After two weeks to three months, your circulation and lung function improve, and your heart attack risk begins to drop sharply.
— Long-term, your risk of coronary heart disease is cut in half after 1 year, and your risk of stroke decreases significantly after 2 to 5 years.
— Quitting can also help you avoid the use of oxygen and disability that comes with chronic lung disease.
Need help quitting? Free tools and tips are available to help you start and stay smoke-free. Visit smokefree.gov or call 1-800-QUIT-NOW.
If you have a history of heavy smoking, you may qualify for a lung cancer screening with a low-dose CT scan. Early detection is critical. Learn more about lung cancer screening and where you can get yours: https://heyor.ca/6Km9yC