The really interesting thing we found was that vaping may also encourage people who don't even want to stop smoking, to eventually quit Dr Caitlin Notley University of East Anglia E cigarettes are not a healthier alternative to cigarettes. They contain nicotine and many harmful ingredients that can cause cancer and heart disease. Since these products are relatively new, we don't know all E cigarettes and smoking cessation among adolescent smokers Scientific Reports Study: Access to e cigarettes brings benefits to society Cigarette to e cigarette switch improves wheeze, dual use does not