Nicotine use among young people is evolving. New research shows more youth are using multiple nicotine products at the same timemost commonly cigarettes and e cigarettes, with a growing rise in combining vapes Tobacco Truth: How Many Americans Vape? CDC Data Show Fewer Vapers & Smokers in 2015 Tracking the course of vaping and cigarette smoking across adolescence: the Child to Adult Transition Study The Lancet Regional Health Western Pacific Landing Percent of adults who currently use e cigarettes some days or every day by Total State Health Access Data Assistance Center