E cigarettes: How they work, risks, and research E Cigarette vs. Traditional Cigarette: Health Risks, Research Gaps, and Counseling Considerations Teens use Juul e cigarettes much more often than other vaping products 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 E Cigarettes, Vapes, and other Electronic Nicotine Delivery Systems (ENDS) FDA