A major new review of more than 100 scientific studies is raising serious concerns about vaping. Researchers found growing evidence that e cigarettes are likely linked to lung and oral cancers, along with Broad evidence implicates e cigarettes as a cause of cancer Stanton Glantz blog Electronic Cigarettes Induce Mitochondrial DNA Damage and Trigger TLR9 (Toll Like Receptor 9) Mediated Atherosclerosis Arteriosclerosis, Thrombosis, and Vascular Biology E cigarette smoke damages DNA and reduces repair activity in mouse lung, heart, and bladder as well as in human lung and bladder cells PNAS