E Cigarettes: Good Idea? Bad Idea? BU Today Boston University Vaping is often marketed as a safer alternative to smoking, but many vape products contain nicotine, harmful chemicals, and heavy metals that can harm developing brains and lungs. 5 Vaping Facts You Need to Know Before You Start The Hidden Dangers Clutch Vape E Cigarettes Potential Harms and Benefits 6,7,35,37,46 48,51,62,63,72 . Download Scientific Diagram E Cigarettes: Know the Health Risks Department of Health Vaping and Electronic Cigarette Toxicity Overview and Recommendations (Project VECTOR) Intrepid Lab