What Causes Poly-Behavioral Addiction?

The reasons for initially trying different socially acceptable legal drugs (e.g. alcohol, cigarettes, etc.), and/ or illegal drugs, or for that matter any addictive behavior involvement (e.g. gambling, binge-eating, etc.) are multi-factored (e.g. peer-pressure, boredom, etc.). In the twentieth century approximately 65% (Helzer et al., 1990) of healthy American individuals (born in a family--free from a history of substance abuse for example, and raised in a positive environment with positive values and conditioning) experiment with underage drinking and possibly smoking cigarettes at least once as adolescents or during a