A 2026 scientific review linked vaping to lung and oral cancer related cellular changes, including DNA damage, oxidative stress, and inflammation in human tissue samples. E cigarette aerosol contains nicotine derived nitrosamines, volatile organic Evaluation of DNA damage through cytogenetic approach in smokers and vapers with and without nicotine compared with control group Bionatura journal A new study has revealed that vaping damaged the DNA of its users in a similar way to smokers who develop cancer. A tea of researchers at University College London found that EUTOPS Institute: Similar DNA changes found in cells of both smokers and e cigarette users Study finds ecigs may cause as much DNA damage as unfiltered cigarettes Digital Trends