The battery heats an attached atomizer that vaporizes the liquid; this aerosolized liquid is inhaled by the user.Adolescents have a number of slang terms to describe e-cigarette use. 1,3 In addition to vaping, another popular term is "JUULing," named after one of the largest e-cigarette companies. 4 Other popular terms among youth are e-hookah, e-pipes, mods, and tanks. 1,3 Clinicians must be familiar with these terms; e-cigarette use by adolescents may be underreported if "e-cigarette" terminology is used in lieu of the slang terms more readily recognized among adolescents. 3 Additionally, clinicians should always specifi cally inquire about vaping, because it is not automatically associated with smoking or tobacco use inquiries in this population. 3 Use of e-cigarettes by adolescents has dramatically increased in the past decade: in 2011, just 1.5% of high school students reporting use of e-cigarettes, compared with 11.