Vaping is often seen as a less harmful alternative to smoking, but since it is still relatively new, there is no way to study the long term effects. Both vaping and smoking irritate New study shows higher formaldehyde risk in e cigarettes than previously thought What's REALLY in your cigarette or vape? You're not just inhaling nicotine. Cigarettes contain arsenic, ammonia, and formaldehyde yes, the same stuff used to embalm bodies. Vapes? Heavy metals, toxic chemicals, Formaldehyde exposure from 3 e cigarette formats tested well below WHO quality guidelines EurekAlert! Impact of e cigarette health warnings on motivation to vape and smoke Tobacco Control Vapes: product page The Real Cost