E cigarettes might harm lung tissue much like regular cigarettes do whether they contain nicotine or not a new study says. Frontiers Prevalence, knowledge, attitude, and practice of vaping among university students in the United Arab Emirates: a cross sectional study A toxic, plastic problem: E cigarette waste and the environment What Does Vaping Do to Your Lungs? Johns Hopkins Medicine E cigarettes helped 18,000 people quit smoking in 2015 but long term effects still unknown