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 Juul culture takes over campus, students discuss nicotine addiction Marlboro maker Altria takes 35% stake in e cigarette company JUUL Vape to Cigarette Conversion: How Many Cigarettes Equal Your Vape Hits Velvet Cloud Cigs in a Pod