E cigarettes are likely to cause cancer, including in the lungs and mouth, according to a sweeping review of scientific evidence that challenges their positioning as a safer alternative to smoking. There is E cigarettes should be offered to smokers, say doctors BBC News Vaping among teens declines, but health risks and addiction remain a concern News E cigarette vapor linked to cancer in mice National Institutes of Health (NIH) Parents Guide to Vaping The Ultimate Guide E cigarettes Cancer Council NSW