Tobacco Smoke, Vaping, and Asthma AAFA.org E cigs and Vaping: How Are They Impacting Our Youth? E cigarette use and respiratory disorders: an integrative review of converging evidence from epidemiological and laboratory studies European Respiratory Society Young, female e cigarette users more likely to have asthma attack, use health services Young vape users three times as likely to start smoking, study finds Professor Erwin Loh