E Cigarettes Vaping Information Vaping: It's hard to quit, but help is available Harvard Health Nicotine e cigarettes reduce harmful chemical exposure, help smokers quit Penn State University Vaping is not replacing smoking. It is often added to it. This is called dual use. Nearly half of e cigarette users still smoke cigarettes. What this means: Smoking continues alongside vaping Do E Cigarettes Help You Quit Smoking? Matthew Goldenberg D.O. How to Quit Vaping, According to Experts The New York Times