JUUL E Cigarette User Guide PDF Electronic Cigarette Tobacco Smoking Teens say they don't vape, they 'Juul.' That makes the activity hard to track Los Angeles Times DYKOne Juul pod contains as much nicotine as a pack of cigarettes. Side effects include increased heart rate and blood pressure, lung disease, chronic bronchitis and insulin resistance leading to type 2 Juul vape: What is it, why are teens addicted, and is it safe? CNET