Toxicity and Appeal of Flavoured E Cigarettes and Flavour Ban Outcomes: A Narrative Review Suzanne Gabriels A scientific review has raised fresh concerns about the long term cancer risks of vaping, concluding that e cigarettes are probably carcinogenic, while also acknowledging significant gaps in the evidence. The analysis of reviews Smoking is still one of the leading causes of mouth cancer, and increases your risk by up to ten times. Even long exposure to second hand smoke can raise your risk, according to Cigarette lectronique 2.0, volution et technologie