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 Flavoring Agents in E cigarette Liquids: A Comprehensive Analysis of Multiple Health Risks Cureus The impact of e cigarettes versus traditional cigarettes on long term cardiopulmonary outcomes American Journal of Physiology Heart and Circulatory Physiology American Physiological Society PDF) Patterns of E Cigarette Use Among Youth and Young Adults: Review of the Impact of E Cigarettes on Cigarette Smoking Latest Cochrane Review finds high certainty evidence that nicotine e cigarettes are more effective than traditional nicotine replacement therapy (NRT) in helping people quit smoking Cochrane A analysis of more than 100 studies found the vaping can have long term health consequences.