What Does A JUUL Really Do To Your Body? Franciscan Health Heavy Metals found in JUUL's Electronic Cigarettes 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 Vaping: What Teens and Parents Should Know Pediatrics Northwest Potentially Hazardous Bacterial Contamination Found in Juul Vaping Products Respiratory Therapy Juul's Harmful Side Effects Office for Science and Society McGill University