6 reasons to say no to e cigarettes What's Up at Upstate SUNY Upstate Teens say they don't vape, they 'Juul.' That makes the activity hard to track Los Angeles Times Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN How E Cigarettes Work E cigarette Characteristics, Safety Issues, & Regulation Britannica Is Vaping Better Than Smoking? American Heart Association