Recreational cannabis legalization has had limited effects on a wide range of adult psychiatric and psychosocial outcomes.
Stephanie M ZellersJ Megan RossGretchen R B SaundersJarrod M EllingsonTasha WalvigJacob E AndersonRobin P CorleyWilliam IaconoJohn K HewittChristian J HopferMatt K McGueScott VriezePublished in: Psychological medicine (2023)
Recreational legalization was associated with increased cannabis use and decreased AUD symptoms but was not associated with other maladaptations. These effects were maintained within twin pairs discordant for residence. Moreover, vulnerabilities to cannabis use were not exacerbated by the legal cannabis environment. Future research may investigate causal links between cannabis consumption and outcomes.