Which is more harmful: e Cigarettes or regular cigarettes? Most smokers wrongly believe vaping is at least as harmful as smoking UCL News UCL University College London E cigarettes: How they work, risks, and research All E Cigarettes Emit Harmful Chemicals, but Some Emit More Than Others Berkeley Lab Berkeley Lab News Center E Cigarettes: Know the Health Risks Department of Health 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