Largest US study of e cigarettes shows their value as smoking cessation aid Vaping may help some smokers quit, small study says UPI.com How to Quit Vaping: A Practical Guide 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 E cigarettes: helping smokers quit or glamorising a dangerous habit? Vaping The Guardian FDA permits the marketing of an e cigarette for the first time, paving the way for vaping products to be legally sold in the U.S. Roswell Park Comprehensive Cancer Center Buffalo,