Juul vape: What is it, why are teens addicted, and is it safe? CNET While e cigarettes were once thought a safer alternative to smoking tobacco cigarettes, studies have found that this just isn't true. With trendy design and an enticing variety of flavors, teens are one The Promise of Vaping and the Rise of Juul The New Yorker INFOGRAPHIC: How Dangerous Are E Cigarette Ingredients? What Does A JUUL Really Do To Your Body? Franciscan Health What is the JUUL? Dana Farber Cancer Institute