Is the Nicotine in E Cigarettes Harmful for Your Health? Scientific American 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 E cigarettes may damage your health, French study finds RFI Une tude amricaine montre que la concentration de nicotine dans les e cigarettes jetables grimpe en