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 Study: Vaping Causes DNA Damage in Human Cells and Mice The Scientist Vaping and the use of e cigarettes are likely to cause cancer, according to a new study published by the University of New South Wales on 30 March. The study, which brought together E cigarettes Cancer Council NSW Vaping and Cancer: Key Questions Answered