> “ Smokers don't magically undo the damage they did to their lungs after they stop smoking”
Except that they do undo the damage.
“ After 15 years, your chances of getting lung cancer are almost the same as someone who has never smoked.”
Except that they do undo the damage.
“ After 15 years, your chances of getting lung cancer are almost the same as someone who has never smoked.”
https://www.verywellhealth.com/risk-of-lung-cancer-in-former...
This study looks more broadly, notably also at onset of smoking:
https://jamanetwork.com/journals/jamaoncology/fullarticle/27...
And this is the TL;DR:
“ Thus, those who quit smoking at ages 15 to 34, 35 to 44, 45 to 54, and 55 to 64 years avoided an estimated 100%, 89%, 78%, and 56% of the excess cancer mortality risk associated with continued smoking, respectively”