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 Can vaping cause cancer? The evidence suggests it might. The Washington Post Why Youth Vape Smoking and Tobacco Use CDC Vaping: How popular are e cigarettes? Teens Who Vape Are More Likely to Start Smoking SPH Will Vaping Lead Teens to Smoking Cigarettes? Johns Hopkins Medicine