Evidence update on the cancer risk of vaping e cigarettes: A systematic review New research shows e cigarette use up sharply among younger adults in US during EVALI outbreak and COVID 19 pandemic Two top cancer organizations highlight how e cigarettes are linked with early steps in cancer development and call for flavor bans : r science Growing the research evidence on e cigarettes by Research at CRUK Medium Research is still evolving, but evidence continues to point to a link between smoking and breast cancer risk. From firsthand and secondhand smoke to vaping and cannabis, here's what scientists knowand what