What you may not have known about e cigarettes, following FDA's ban on Juul products The Hill 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 Juul created a market, fueled a crisis, and why regulators failed to stop it : Planet Money : NPR Puff bars: a dangerous trend in adolescent : Current Opinion in Pediatrics