Ex-smokers remain at higher risk of lung disease because some lung cells recover after quitting while others retain lasting changes to tissue structure, immune function and blood vessel health, according to an analysis of more than 100,000 lung cells across 40+ cell types from 21 people

Ex-smokers remain at higher risk of lung disease because some lung cells recover after quitting while others retain lasting changes to tissue structure, immune function and blood vessel health, according to an analysis of more than 100,000 lung cells across 40+ cell types from 21 people