Full article: The relationship between asthma diagnosis and E Cigarette use among youth and young adults: the mediation effects of anxiety, depression, and impulsivity and the moderation effects of substance use Cancer causing Chemical Formed in E cigarette Users School of Public Health University of Minnesota Unraveling the Truth: Is Nicotine Truly a Depressant? Australian researchers have issued one of the strongest warnings yet about vaping, saying a major review of evidence suggests e cigarettes are likely to cause lung and oral cancer. The review found signs