Most E cigarette Users Ages 18 to 29 Never Smoked Before American Cancer Society World No Tobacco Day Shifts Focus to Vaping RT WHO estimates at least 15 million teenagers use e cigarettes worldwide World Business Recorder WHO European Region has the highest rate of tobacco use in the world, with an alarming rise in young people using e cigarettes, global report warns Genericlop N1 de la Cigarette lectronique et du e liquide Bordeaux