How Electronic Cigarettes Work HowStuffWorks Nicotine e cigarettes found to be more successful in helping smokers quit Why e cigarettes are dangerous UPMC MyHealth Matters April 7, 2014: What are electronic cigarettes and why are they so popular? Tennessee Poison Center FREE 24 7 Poison Help Hotline 800.222.1222 FACT: Most e cigarette users also smoke cigarettes, a pattern known as dual use. This means the tobacco industry isn't helping people quit; it's sustaining addiction through another product. While the industry claims What's in an E Cigarette? American Lung Association