Youth Know the Risks Health effects and known pathology associated with the use of E cigarettes ScienceDirect Nonnicotine vapes may be marketed as safe, but many still contain chemicals, have unknown health effects, and aren't FDAregulated. Teens are using them more ofteneven alongside nicotine vapes. No ecigarette is risk free. Harmful Effects of Vaping Chart Health Edco Since their introduction in Europe in 2006 and the U.S. in 2007, the use of e cigarettes a.k.a., vapes has skyrocketed. A recent review from researchers in Australia found the results Lung cancer risks persist with e cigarette use after quitting tobacco smoking