abstract background: in the past two decades psychoactive drugs especially among adolescents and youth are common, these drugs located in the second row of drug abuse in the world. present study performed with aim of determinant of predictors of psychoactive drugs use among adolescents and youth in kermanshah city based on theory of planned behavior. methods: this cross-sectional study was perf...

and seeks to give a reasonable explanation as to why young people are, in increasing numbers, taking to drugs at the present time. Unfortunately, one of the few original conceptions of the author, is a table in which a number of pieces of gross misinformation are clearly perpetrated. In this table (p. 14) no attempt is made to compare the effects of the various major addicting drugs: heroin is ...