Can lung damage from vaping heal? Allen Carr's Easyway E cigarette users trying to quit smoking should vape every day, studies suggest Smoking The Guardian Vapor From e Cigarettes Renders Protective Lung Cells Defenseless, Study Finds AJMC Flavoured e cigarettes can kill lung cells, study finds RNZ News NIH funded studies show damaging effects of vaping, smoking on blood vessels National Institutes of Health (NIH)