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 FDA approves Juul's tobacco and menthol e cigarettes Reuters 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 How Many Puffs in a Juul Pod? A Guide to Flavor and Longevity Inline Vape LLC