Nearly Half of JUULpods Contain Lung Toxin Study Says Juul Side Effects Long Term Does Vaping Cause Cancer? Juul Health Risks Australia From Vaping Symptoms 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 Evidence update on the cancer risk of vaping e cigarettes: A systematic review Vaping Dangers: What Parents Should Know Attorney General Brian Schwalb