Why is vaping so popular? Devices are sleek and can be highly addictive. Vox Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN Vaping Giant Juul Explains Everything Wrong With Our World Disposable E Cigarettes More Toxic Than Traditional Cigarettes UC Davis JUUL Side Effects: What Are the Health Risks? 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