Benefits of stopping smoking
Revu par Dr Hayley Willacy, FRCGP Dernière mise à jour par Dr Toni Hazell, MRCGPLast updated 16 mai 2023
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Dans cette série :TabagismeComment arrêter de fumerTabagisme passifAre e-cigarettes safe?Thérapie de substitution à la nicotineBupropion pour arrêter de fumer
Arrêter de fumer peut avoir un impact considérable sur votre santé et votre mode de vie. Il n'est jamais trop tard pour arrêter de fumer et en tirer de grands bénéfices pour votre santé. Par exemple, si vous arrêtez de fumer à l'âge moyen, avant de développer un cancer ou une autre maladie grave, vous évitez la majorité du risque accru de mortalité lié au tabac. Une aide est disponible si vous trouvez difficile d'arrêter de fumer.
At a glance
Stopping smoking immediately starts to improve your health.
It reduces your risk of serious diseases like heart disease and cancer.
Stopping before age 50 can significantly reduce the risk of premature death.
Within 15 years, your risk of heart attack can be similar to someone who has never smoked.
Other benefits include better-smelling breath, improved taste, and financial savings.
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Health benefits of stopping smoking
The benefits from stopping smoking begin straightaway. The following are examples of the dangers that can be avoided or reduced by quitting smoking.
You reduce your risk of getting serious disease no matter what age you give up. However, the sooner you stop, the greater the reduction in your risk. In fact, researchers have found that if you stop smoking before the age of 50 your risk of dying prematurely is virtually reduced to that of a non-smoker. Even if you give up after the age of 60, your risk of dying at any given age is reduced by about 39% compared to a person who carries on smoking.
If you stop smoking you:
Reduce the risk of getting serious smoking-related diseases such as une maladie cardiaque, cancers, maladie pulmonaire obstructive chronique (MPOC) et maladie artérielle périphérique.
Reduce the risk of getting various other conditions which, although not life-threatening, can cause unpleasant problems. For example:
Erection problems (impuissance).
Problèmes de fertilité.
Optic neuropathy - this is a condition affecting the nerve supplying the eye.
A breakdown of the tissue at the back of the eye (dégénérescence maculaire).
A skin condition called psoriasis.
Maladie des gencives.
Tooth loss.
'Amincissement' des os (ostéoporose).
Phénomène de Raynaud - in this condition, fingers turn white or blue when exposed to cold.
Reduce the risk of pregnancy complications if you are pregnant.
If you have smoked since being a teenager or young adult:
If you stop smoking before the age of about 35, your life expectancy is only slightly less than it is for people who have never smoked.
If you stop smoking before the age of 50, you decrease the risk of dying from smoking-related diseases by 50%.
It is never too late to stop smoking to gain health benefits. Even if you already have COPD or heart disease, your outlook (prognosis) is much improved if you stop smoking.
Timeline of health benefits after stopping smoking
After | Health Benefit |
72 hours | Breathing becomes easier. Bronchial tubes begin to relax and energy levels increase. |
1 month | Skin appearance improves, owing to improved skin perfusion. |
3-9 months | Cough, wheezing, and breathing problems improve and lung function increases by up to 10%. |
1 year | Risk of a heart attack falls to about half that of a smoker. |
10 years | Risk of lung cancer falls to about half that of a smoker. |
15 years | Risk of heart attack falls to the same level that it would be for someone who has never smoked. |
Other benefits of stopping smoking
Retour au sommaireBenefits include:
Your breath won't smell any more of stale tobacco.
The smell of stale tobacco will also go from your clothes, hair and home.
Foods and drinks taste and smell much better.
Finances improve. You may well save as much as £3,000 per year if you smoked 20 a day.
Better rates of insurance policies.
You are likely to feel good about yourself.
Patient picks for Tabagisme

Mode de vie sain
Comment arrêter de fumer
About 2 in 3 smokers want to stop smoking. Some people can give up easily. Willpower and determination are the most important aspects when giving up smoking. However, nicotine is a drug of addiction and many people find giving up a struggle. Help is available.
par Dr Toni Hazell, MRCGP

Mode de vie sain
Tabagisme
Cigarette smoking is the greatest single cause of illness and premature death in the UK. Worldwide, tobacco kills 7 million people every year. Almost a million deaths are due to non-smokers being exposed to second-hand smoke.
by Dr Hayley Willacy, FRCGP
Questions fréquemment posées
What kind of short-term health improvements can I expect immediately after quitting smoking?
Within 72 hours of stopping smoking, your breathing will become easier as your bronchial tubes begin to relax. You can also expect to experience increased energy levels. After about one month, your skin appearance will improve due to better blood flow.
Does quitting smoking help with conditions like impotence or gum disease?
Yes, stopping smoking can reduce the risk of developing various conditions that, while not life-threatening, can cause unpleasant problems. These include erection problems (impotence), fertility issues, cataracts, gum disease, and tooth loss.
Can I still benefit from quitting if I already have a smoking-related disease?
Yes, it is never too late to stop smoking to gain health benefits. Even if you already have conditions like chronic obstructive pulmonary disease (COPD) or heart disease, stopping smoking will significantly improve your outlook or prognosis.
How much money could I save if I stop smoking?
If you smoke 20 cigarettes a day, you could save as much as £3,000 per year by quitting. Your finances will generally improve.
Beyond health, what other positive changes can I expect in my daily life after quitting?
In addition to health improvements, your breath will no longer smell of stale tobacco. The smell of stale tobacco will also disappear from your clothes, hair, and home. You'll find that food and drinks taste and smell much better, and you may even get better rates on insurance policies. You are also likely to feel good about yourself.
If I quit smoking, does my risk of a heart attack ever become the same as someone who has never smoked?
Yes, if you stop smoking, your risk of a heart attack will fall to about half that of a smoker within one year. After 15 years, your risk of a heart attack falls to the same level it would be for someone who has never smoked.
Lectures complémentaires et références
- Hughes JR, Stead LF, Hartmann-Boyce J, et al; Antidepressants for smoking cessation. Cochrane Database Syst Rev. 2014 Jan 8;1:CD000031. doi: 10.1002/14651858.CD000031.pub4.
- Wu J, Sin DD; Improved patient outcome with smoking cessation: when is it too late? Int J Chron Obstruct Pulmon Dis. 2011;6:259-67. doi: 10.2147/COPD.S10771. Epub 2011 May 2.
- E-cigarettes: an evidence update; Public Health England, August 2015
- Hackshaw A, Morris JK, Boniface S, et al; Low cigarette consumption and risk of coronary heart disease and stroke: meta-analysis of 141 cohort studies in 55 study reports. BMJ. 2018 Jan 24;360:j5855.
- Reid RD, Pritchard G, Walker K, et al; Managing smoking cessation. CMAJ. 2016 Dec 6;188(17-18):E484-E492. doi: 10.1503/cmaj.151510. Epub 2016 Oct 3.
- Tobacco: preventing uptake, promoting quitting and treating dependence; NICE guideline (2021 - last updated February 2025)
- Arrêt du tabac; NICE CKS, avril 2023 (accès réservé au Royaume-Uni)
- Hartmann-Boyce J, McRobbie H, Lindson N, et al; Electronic cigarettes for smoking cessation. Cochrane Database Syst Rev. 2021 Apr 29;4(4):CD010216. doi: 10.1002/14651858.CD010216.pub5.
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About the authorView full bio

Dr Toni Hazell, MRCGP
MBBS, BSc, MRCGP, DFSRH, Dip GU med, DRCOG, DCH (London, UK, 2000)
Dr. Toni Hazell qualified from St. Mary’s Hospital Medical School and did her VTS at Northwick Park Hospital.
About the reviewerView full bio

Dr Hayley Willacy, FRCGP
Médecin généraliste, Auteur médical
MBChB (1992), DRCOG, DFFP, MRCOG (Part 1) MRCGP (2007), DFSRH (2013), MSc - medical education (2020)
Dr Hayley Willacy was an NHS GP working in northwest England, who retired from clinical practice in 2022 after 30 years.
Historique de l'article
Les informations sur cette page sont rédigées et examinées par des cliniciens qualifiés.
Prochaine révision prévue : 12 mai 2028
16 mai 2023 | Dernière version

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