Vaping Student Health & Well Being 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 The Medical Minute: Hazards of juuling or vaping Penn State Health News Vaping, Environmental Toxicants Exposure, and Lung Cancer Risk Study finds lung cancer in mice exposed to nicotine vaping Can Vaping Cause Lung Cancer? Here's What We Know The Lung Docs