Teens using e cigarettes show evidence of same toxic chemicals as smokers: Study Good Morning America E cigarettes What We Don't Know about E Cigs YouTube Vaping: The Great Innovation Public Health Failed to Embrace New data show nearly 800,000 teens vaped for the first time in the past year, as FDA is set to announce first major decision to remove a popular e cigarette brand E Cigarette Use Among Youth Smoking and Tobacco Use CDC