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 Evidence update on the cancer risk of vaping e cigarettes: A systematic review Switching to E Cigarettes Did not Prevent His Lung Cancer Death Tobacco Prevention Initiatives Misconceptions about e cigarette safety might be stopping smokers using them to quit Lung cancer risks persist with e cigarette use after quitting tobacco smoking