The research looked at the chemical composition of "vape smoke" and assessed its cancer risk using data from published animal studies. Read more E Cigarettes: Good Idea? Bad Idea? BU Today Boston University Graphical review: The redox dark side of e cigarettes; exposure to oxidants and public health concerns ScienceDirect 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