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...drugs like marijuana, cocaine, heroin, methamphetamines, and other so-called club drugs (ecstacy, PCP, ketamine, GHB, and similar drugs) are also used to produce various effects, including pleasure sensations, and general... ?Running head: Substance abuse Substance Abuse Substance Abuse Introduction Substance abuse is one of the major societal issues afflicting many people – especially those in the younger age group. According to the World Health Organization (2011), substance abuse is related to the “harmful or hazardous use of psychoactive substances, including alcohol and illicit drugs”. These substances can in turn lead to dependence which basically manifests as behavioral, cognitive, and...