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 Teens say they don't vape, they 'Juul.' That makes the activity hard to track Los Angeles Times How Much More Nicotine Does One Juul Pod Have What's the deal with JUULing? How Much More Nicotine Does One Juul Pod Have FDA approves Juul's tobacco and menthol e cigarettes