What's the deal with JUULing? CORA Services 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 Teen vaping 'epidemic': FDA to limit sale of sweet e cigarette flavors Teens say they don't vape, they 'Juul.' That makes the activity hard to track Los Angeles Times