Juul & a Vaping Crisis for Teens Morningside Center for Teaching Social Responsibility The rise of teen vaping is worrying doctors worldwide. While e cigarettes were once marketed as a safer alternative, research shows they contain nicotine, heavy metals, and cancer causing chemicals that can damage developing A new study has confirmed what many suspected, establishing vaping is likely to cause lung and oral cancer. #9News This statement is common, but it is not true! According to the manufacturer, a single JUUL pod contains as much nicotine as a pack of 20 regular cigarettes!