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How long after quitting smoking is one at risk of lung cancer?
- Thread starter bushcraft
- Start date
- Joined
- Mar 17, 2002
- Messages
- 1,753
Opinions vary wildly on this. I've heard that irreversable lung damage occurs early and cannot be reversed. Ever. I've also heard that the human lung is one of the only organs that can heal and rebuild after being damaged. Who knows? Congrats on your quit. I've been off the nic-o-monster for six years now. It gets easier. I don't even think about it anymore.
Either way, being off cigs is better than being on them.
Either way, being off cigs is better than being on them.
- Joined
- Aug 21, 2009
- Messages
- 2,932
Opinions vary wildly on this. I've heard that irreversable lung damage occurs early and cannot be reversed. Ever. I've also heard that the human lung is one of the only organs that can heal and rebuild after being damaged. Who knows? Congrats on your quit. I've been off the nic-o-monster for six years now. It gets easier. I don't even think about it anymore.
Either way, being off cigs is better than being on them.
That is the bottom line right there^
I actually just heard a speech about this subject and they said that a healthy/ youthful person (18-30yrs old), can heal almost 100% after 15 years off the smoke. That does not say much for lung cancer though -just the health of the lung. The younger you are the faster they heal. If you smoked a lot there is probably a lot of damaged cells and and that takes time. As the years go by, the healing improves exponentially, then slows down when most of the nasty stuff is gone. The most change occurs in the first years after quitting. (that is what I heard at the speech for what it is worth)
9 months! congrats!
Last edited:
Esav Benyamin
MidniteSuperMod
- Joined
- Apr 6, 2000
- Messages
- 90,915
bushcraft, I quit about ten years ago after over thirty years smoking. In about a month, cravings were completely gone, in a couple more months I began to actively dislike the smell of burning tobacco, and by maybe six months my breathing improved dramatically.
Medically? I believe very little of public medical pronouncements. Given the pollution in the more densely populated areas, we're all at risk of it, smokers or not.
Medically? I believe very little of public medical pronouncements. Given the pollution in the more densely populated areas, we're all at risk of it, smokers or not.
- Joined
- Jun 10, 2003
- Messages
- 15,288
There's a new report I just saw this week about DNA changes from smoking. It's not a happy thought .But the sooner you stop the better off you'll be .
http://www.dailymail.co.uk/health/a...rms-DNA-finds-cancer-study-gene-mutation.html
http://www.dailymail.co.uk/health/a...rms-DNA-finds-cancer-study-gene-mutation.html
Not good at all mete.
Smoking just 15 cigarettes harms your DNA, finds cancer study on gene mutation
By Daily Mail Reporter
Last updated at 12:39 PM on 17th December 2009
Smoking
Smoking causes changes to a person's genetic code, according to a comprehensive new lung cancer study
Smokers experience one mutation to their DNA for every 15 cigarettes they smoker, according to a study that mapped out the genetic blueprint of a lung cancer patient.
British researchers led the massive international project, which identified 23,000 mutations that bore the expected signs of damage caused by chemicals in tobacco smoke.
All cancers are caused by mistakes in the genetic code - mutations in DNA that can be triggered by environmental agents.
The scientists hope the results will help them understand the causes of cancer and to develop new treatments.
They found the genetic defects ranged from single-letter changes in the person's code to deletions or re-arrangements of hundreds of thousands of letters.
No single mutation stood out as being the primary cause of the disease. Instead most were 'passenger' mutations that appeared to influence the development of cancer only in combination.
Study leader Dr Peter Campbell, from the Wellcome Trust Sanger Institute in Cambridgeshire said: 'The knowledge we extract over the next few years will have major implications for treatment.
'By identifying all the cancer genes we will be able to develop new drugs that target the specific mutated genes and work out which patients will benefit from these novel treatments.'
Dr Andy Futreal, also from the Wellcome Trust, said: 'Cancers occur when control of cell behaviour is lost - cells grow how, when and where they shouldn't.
'Mutations in DNA caused by, for example, cigarette smoke are passed on to every subsequent generation of daughter cells, a permanent record of the damage done.
'Like an archaeologist, we can begin to reconstruct the history of the cancer clone - revealing a record of past exposure and accumulated damage in the genome.'
More...
* ANDREW ALEXANDER: The truth about tobacco? It's lost in a smokescreen
* The bespoke cancer 'cure': Patients could get specially tailored drugs after UK scientists decode damage to DNA
A person's risk of lung cancer is known to fall to around normal some 15 years after quitting smoking.
Scientists suspect that lung cells containing harmful mutations are replaced by new cells that are clear of defects.
The researchers carried out the sequencing 60 times for lung cancer in order to produce accurate results. They also mapped the blueprint for melanoma (a dangerous form of skin cancer).
Professor Mike Stratton, joint head of the Cancer Genome Project said: 'These are the two main cancers in the developed world for which we know the primary exposure.
'For lung cancer, it is cigarette smoke and for malignant melanoma it is exposure to sunlight. With these genome sequences, we have been able to explore deep into the past of each tumour, uncovering with remarkable clarity the imprints of these environmental mutagens on DNA, which occurred years before the tumour became apparent.
'We can also see the desperate attempts of our genome to defend itself against the damage wreaked by the chemicals in cigarette smoke or the damage from ultraviolet radiation. Our cells fight back furiously to repair the damage, but frequently lose that fight.'
Sir Mark Walport, director of the Wellcome Trust, said: 'We want to drive healthcare through better understanding of the biology of disease.
'This is the first glimpse of the future of cancer medicine, not only in the laboratory, but eventually in the clinic. The findings from today will feed into knowledge, methods and practice in patient care.'
Read more: http://www.dailymail.co.uk/health/a...cancer-study-gene-mutation.html#ixzz0a4F04gKl
Smoking just 15 cigarettes harms your DNA, finds cancer study on gene mutation
By Daily Mail Reporter
Last updated at 12:39 PM on 17th December 2009
Smoking
Smoking causes changes to a person's genetic code, according to a comprehensive new lung cancer study
Smokers experience one mutation to their DNA for every 15 cigarettes they smoker, according to a study that mapped out the genetic blueprint of a lung cancer patient.
British researchers led the massive international project, which identified 23,000 mutations that bore the expected signs of damage caused by chemicals in tobacco smoke.
All cancers are caused by mistakes in the genetic code - mutations in DNA that can be triggered by environmental agents.
The scientists hope the results will help them understand the causes of cancer and to develop new treatments.
They found the genetic defects ranged from single-letter changes in the person's code to deletions or re-arrangements of hundreds of thousands of letters.
No single mutation stood out as being the primary cause of the disease. Instead most were 'passenger' mutations that appeared to influence the development of cancer only in combination.
Study leader Dr Peter Campbell, from the Wellcome Trust Sanger Institute in Cambridgeshire said: 'The knowledge we extract over the next few years will have major implications for treatment.
'By identifying all the cancer genes we will be able to develop new drugs that target the specific mutated genes and work out which patients will benefit from these novel treatments.'
Dr Andy Futreal, also from the Wellcome Trust, said: 'Cancers occur when control of cell behaviour is lost - cells grow how, when and where they shouldn't.
'Mutations in DNA caused by, for example, cigarette smoke are passed on to every subsequent generation of daughter cells, a permanent record of the damage done.
'Like an archaeologist, we can begin to reconstruct the history of the cancer clone - revealing a record of past exposure and accumulated damage in the genome.'
More...
* ANDREW ALEXANDER: The truth about tobacco? It's lost in a smokescreen
* The bespoke cancer 'cure': Patients could get specially tailored drugs after UK scientists decode damage to DNA
A person's risk of lung cancer is known to fall to around normal some 15 years after quitting smoking.
Scientists suspect that lung cells containing harmful mutations are replaced by new cells that are clear of defects.
The researchers carried out the sequencing 60 times for lung cancer in order to produce accurate results. They also mapped the blueprint for melanoma (a dangerous form of skin cancer).
Professor Mike Stratton, joint head of the Cancer Genome Project said: 'These are the two main cancers in the developed world for which we know the primary exposure.
'For lung cancer, it is cigarette smoke and for malignant melanoma it is exposure to sunlight. With these genome sequences, we have been able to explore deep into the past of each tumour, uncovering with remarkable clarity the imprints of these environmental mutagens on DNA, which occurred years before the tumour became apparent.
'We can also see the desperate attempts of our genome to defend itself against the damage wreaked by the chemicals in cigarette smoke or the damage from ultraviolet radiation. Our cells fight back furiously to repair the damage, but frequently lose that fight.'
Sir Mark Walport, director of the Wellcome Trust, said: 'We want to drive healthcare through better understanding of the biology of disease.
'This is the first glimpse of the future of cancer medicine, not only in the laboratory, but eventually in the clinic. The findings from today will feed into knowledge, methods and practice in patient care.'
Read more: http://www.dailymail.co.uk/health/a...cancer-study-gene-mutation.html#ixzz0a4F04gKl
- Joined
- Aug 26, 2006
- Messages
- 7,012
Been cigarette free for 9 months now.
When does an ex smoker become like someone who never smoked?
Do the lungs totally renew cells?How long does it take?
Stay healthy everyone
Only smoked while in college, but years later when running my own company, my bookkeeper that had worked for me 18 years decided to quit cold turkey after smoking for forty years (2 to 3 packs a day). He died of lung cancer 10 years later, only made it 6 weeks after they discovered it. Some damage is not reversable. Glad you quit as I did. I do think the length of time he smoked and the amount had something to do with it.