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 causes the same DNA changes as smoking, scientists find ITV News What chemicals are in a cigarette? What does smoking do to your body? Cancer Research UK An Overview of E Cigarette Impact on Reproductive Health