“…Internet addiction in college students and its relationship with cigarette smoking and alcohol use in Northeast China Dear Editor, Internet addiction is an impulse control disorder impairing real life relationships, particularly in young people. Internet addiction and substance abuse may share common features (Black & Monrouxe, 2014;Dietz et al, 2013;Machowicz, Ciechanska, Zycinska, et al, 2013). Substance abuse means excessive use of cigarette, alcohol, or other drugs of abuse, resulting in negative effects on both physical and mental health (Mitrovic, Hadzi-Pesic, Stojanovic, & Milicevic, 2014).…”