People who vape show DNA changes similar to smokers and that are linked to cancer

Associated Press

• A University of Southern California study has found that vapers exhibit similar chemical modifications to people who smoke cigarettes – modifications commonly found in nearly all types of human cancer.
• In an email sent to BI, the study's lead researcher, Ahmad Besaratinia, said the study "demonstrates, for the first time, biologically important molecular changes in blood cells of vapers, similarly to smokers."
• Experts told BI that research into the physiological effects of vaping is often hindered by the fact that many vapers have a history of smoking.
• Though the USC study seems to have avoided this hindrance, the fact many vapers are ex-smokers may make research into vaping's physiological impact challenging.
• 6.1% of British vapers in the period January 2019 to September 2019 had never smoked, according to UK government research, while a 2018 study found that 15% of US adult vapers had never smoked.
• Visit Business Insider's homepage for more stories.

A University of Southern California study published in February found vapers exhibit similar DNA changes to people who smoke cigarettes – modifications commonly found in nearly all types of cancer.

The study examined the blood of a group of people, controlled for age, gender, and race, who were split equally into three categories. These were people who only vape; people who only smoke; and a control group of people who neither vape nor smoke.

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