Joint smokingvaping prevalence rates among American youth and young adults 20112022 Harm Reduction Journal Springer Nature Link 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 Why a group of U.S. states smokes more than a less developed country Young adults drive historic decline in smoking AOL