The evidence is clear: Young E cigarette users suffer from respiratory symptoms American Lung Association From cigarettes to e cigarettes: The evolution of tobacco use in the United States 4 H Healthy Youth Juul, the vape device teens are getting hooked on, explained Vox Epidemic' of dangerous youth e cigarette, vaping use, surgeon general declares ABC News Teenagers Keep Vaping Despite Crackdowns on E Cigarettes The New York Times