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 Does Vaping Or Smoking Marijuana Cause Lung Cancer? SERO Vaping & Lung Cancer Moffitt Smoking vs. Vaping: The Same Damage, Just Marketed Better! If your lungs could talk, they would tell you the harsh truth: Smoking and vaping both burn and damage your lungs, just differently. How Likely Is It to Get Lung Cancer from Vaping? Sharp HealthCare Vaping likely to cause cancer: new findings