E cigarettes cause 'significantly less damage to our DNA than cigarettes' E cigarettes 'likely' to cause two different types of cancer due to 'tumour causing chemicals damaging DNA' E cigarettes: How they work, risks, and research Vaping increases risk of DNA mutations which could lead to cancer, study suggests The Independent The Independent 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 Full article: A review of e cigarettes and their effects on DNA methylation in human studies