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More evidence e-cigarettes may be bad for you, scientists say

Vapour from smokeless cigarettes can damage human cell DNA in ways that could lead to cancer, study shows.

Adding to growing evidence on the possible health risks of electronic cigarettes, a lab team from the United States Veterans Affairs San Diego Healthcare System tested two products and found they damaged cells in ways that could lead to cancer. “Our study strongly suggests that electronic cigarettes are not as safe as their marketing makes them appear to the public,” wrote the researchers, who published their findings in the journal Oral Oncology. The researchers created an extract from the vapour of two popular brands of e-cigarettes and used it to treat human cells in Petri dishes. Compared with untreated cells, the treated cells were more likely to show DNA damage and die. The e-cigarette with nicotine caused worse damage, but even the nicotine-free vapour was enough to alter cells. The dosage of vapour in the study was similar to someone smoking continuously for hours on end.

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