E cigarettes get a bad rap but scientists say they can be really helpful in 2 ways AOL In recent years, the number of e cigarette users worldwide has sharply increased, with many believing that vaping is less harmful than smoking traditional cigarettes. However, health experts are warning of its negative From cigarettes to e cigarettes: The evolution of tobacco use in the United States 4 H Healthy Youth The Truth About E Cigarettes: What Parents, Teens & the Public Should Know Pine Rest Newsroom