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Drinking during adolescence and young adulthood: Taboo, tolerated, and treasured


The underlying causes of a behavior, such as alcohol drinking, can change during adolescence and young adulthood. Prior alcohol research has shown that, in general: shared/common environment influences are strongest in early adolescence, declining in strength until young adulthood; unique environmental influences are moderate, but stable, during adolescence and young adulthood; and genetic influences are weakest during early adolescence, steadily increasing in strength until young adulthood. This study examined the relations between genetic and environmental etiologies of alcohol use and the influence of peer use, parental autonomy granting, and maternal closeness on this behavior.


Researchers analyzed the first three waves of data collected during the National Longitudinal Study of Adolescent Health for 2,447 twin and sibling pairs (30% male pairs, 32% female pairs, 38% opposite sex pairs) ranging in age from 13 to 27 years. Wave 1was collected from 1994 to 1995, Wave 2 from 1995 to 1996, and Wave 3 from 2001 to 2002.


Results supported previous findings showing that genetic and environmental influences on alcohol use change during adolescence and young adulthood. In addition to genetic and environmental influences that were common to these age groups, there were genetic and environmental influences that were important only during adolescence. Friends' drinking behavior was a more pervasive influence on adolescents' drinking than parenting practices. The authors suggested that interventions and prevention programs geared toward reducing alcohol use in younger populations could benefit from a focus on peer influence.

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