Authors “found no evidence that RML [recreational marijuana legalization] was associated with [an] increased likelihood or level of marijuana use among adolescents. Rather, among adolescents who reported any use of marijuana in the past month, the frequency of use declined by 16 percent after RML.”
“Adolescent treatment admissions for marijuana declined in most of states. The mean annual admissions rate for all states declined over the study period by nearly half.”
“Taken as a whole, these studies suggest that marijuana legalization has not had much overall effect on marijuana use by children and adolescents, at least during the past two decades.”
The use of cannabis during adolescence is not associated with structural brain differences in adulthood, according to longitudinal data published in the journal Drug and Alcohol Dependence. Researchers concluded, “[T]he patterns of cannabis use typically seen in community-dwelling adolescents does not appear to have lasting effects on brain structure.”
The establishment of medical cannabis dispensaries within close proximity of schools does not make teens more susceptible to using marijuana, according to data published in the Journal of Adolescent Health. Authors concluded, “We did not find empirical support of the associations of medical marijuana availability, price, and product variety around schools with adolescents’ marijuana use and susceptibility to use … in the future.”
State laws reducing minor marijuana possession offenses from criminal to civil violations (aka decriminalization) are associated with dramatic reductions in drug-related arrests, and are not linked to any uptick in youth cannabis use, according to data published by researchers at Washington University and the National Bureau of Economic Research.
The enactment of statewide laws regulating the use and distribution of cannabis for medical purposes is not associated with increased marijuana use among young people, according to a review of relevant studies published online ahead of print in the journal Addiction. Authors concluded, “In summary, current evidence does not support the hypothesis that MML passage is associated with increased marijuana use prevalence among adolescents in states that have passed such laws.”
Neither the occasional nor the heavy use of marijuana by adolescents is associated with decreased motivation, according to clinical data published online ahead of print in the journal Substance Use & Misuse. Authors reported: “After controlling for confounds, no significant differences were observed between regular and light users on any motivation index.”