E cigarette use declines for teenagers Hallmanac 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 Most states have done little to stop e cigarette use among kids despite risk of nicotine addiction APM Reports On Health Vaping is less harmful than conventional smoking Products Data Briefs Number 365 April 2020