• 20 minutes after quitting: Your blood pressure and heart rate will drop.
• 12 hours after quitting: The carbon monoxide level in your blood will return to normal.
• 2 weeks to 3 months after quitting: Your circulation and lung function will improve.
• 1 to 9 months after quitting: You’ll cough less and you’ll have less shortness of breath. Your lungs will be more able to handle mucus, clean themselves, and reduce your risk of infection.
• 1 year after quitting: Your excess risk of heart disease will be half that of a smoker.
And the benefits don’t stop there! Within several years your stroke and heart disease risk can equal that of a non-smoker’s and your risk of cancer will be dramatically reduced as well. You’ll also see immediate benefits in your everyday life:
• Your breath will smell better.
• Your teeth will get whiter.
• Your clothes and hair will stop smelling of cigarette smoke.
• Your yellow fingers and fingernails will disappear.
• Your senses of smell and taste will improve.
• Everyday activities – like climbing stairs or doing light housework – won’t leave you out of breath.
• You’ll save money! Smoking is expensive. When you stop buying cigarettes, the payoff is big.
The good news is that it’s never too late to quit. If you stop smoking, you’ll improve your health and reduce your long-term risks – and you’ll see immediate benefits, some within just a few hours! And the benefits don’t stop there - Within several years your stroke and heart disease risk can equal that of a non-smoker’s and your risk of cancer will be dramatically reduced as well.

Cigarette smoke paralyzes the tiny hairs in your lungs whose job it is to keep your lungs clear. As soon as you stop smoking, those hairs begin to recover, allowing the cleaning system of your lungs to get back to work. The day after you quit smoking, your risk of surviving a heart attack doubles. A decade after you quit you will see a huge reduction in your risk of smoking-related health problems. Fifteen years after you have stopped smoking, your risk of lung cancer starts to approach that of a non-smoker.
Stopping smoking promotes the following health benefits:
- The risk for a heart attack drops sharply after just 1 year.
- Stroke risk can fall to about the same as a nonsmoker’s after just 2 to 5 years.
- Risk for cancers of the mouth, throat, esophagus and bladder is cut in half after 5 years.
- Risk for dying of lung cancer drops by half after 10 years.
Here's what happens after you quit smoking:
- 20 minutes after quitting, your heart rate and blood pressure drop.
- 12 hours after quitting, levels of carbon monoxide in your blood return to normal.
- 2 weeks to 3 months after quitting, your heart attack risk begins to fall and lung function improves.
- 1 to 9 months after quitting, coughing and shortness of breath decrease.
- 1 year after quitting, the added risk of coronary heart disease is half of that of a smoker's.
- 10 years after quitting, your lung cancer death rate is half of that of a smoker's.
- 15 years after quitting, your coronary heart disease risk is the same as a nonsmoker's.
- Within minutes, your blood pressure and heart rate return to normal.
- Within hours, the carbon monoxide level in your blood will go down -- and the oxygen level will go up.
- Within days, your ability to smell and taste will improve, and the yellow stains on your hands and teeth will fade.
- Within several weeks to months, you'll start to breathe easier. Your smoker's cough will disappear, and you'll find that you're more clear-headed and energetic.
- Within a year or two, your risk for heart disease, stroke, emphysema, and lung cancer will drop by up to 50%. Eventually, your risk for these diseases will be the same as if you had never smoked.
- fewer wrinkles
- no more stained teeth and fingers
- better breath
- clothes and hair that no longer smell of tobacco
- no need to leave gatherings or work to smoke outside
- no more worrying that people are put off by the smell in your home or car
12 hours after quitting: The carbon monoxide level in your blood drops to normal. (US Surgeon General's Report, 1988, p. 202)
2 weeks to 3 months after quitting: Your circulation improves and your lung function increases. (US Surgeon General's Report, 1990, pp. 193, 194, 196, 285, 323)
1 to 9 months after quitting: Coughing and shortness of breath decrease; cilia (tiny hair-like structures that move mucus out of the lungs) regain normal function in the lungs, increasing the ability to handle mucus, clean the lungs, and reduce the risk of infection. (US Surgeon General's Report, 1990, pp. 285-287, 304)
1 year after quitting: The excess risk of coronary heart disease is half that of a smoker's. (US Surgeon General's Report, 1990, p. vi)
5 years after quitting: Your stroke risk is reduced to that of a non-smoker 5 to 15 years after quitting. (US Surgeon General's Report, 1990, p. vi)
10 years after quitting: The lung cancer death rate is about half that of a person who continues smoking. The risk of cancer of the mouth, throat, esophagus, bladder, cervix, and pancreas decrease, too. (US Surgeon General's Report, 1990, pp. vi, 131, 148, 152, 155, 164, 166)
15 years after quitting: The risk of coronary heart disease is the same as a non-smoker's. (US Surgeon General's Report, 1990, p. vi)
Continue Learning about Smoking Treatment
Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.