A federally funded study in the U.S. concluded that those living in states with legal cannabis have lower rates of alcohol use disorder (AUD).
The longitudinal study that began in 2014 when weed wasn’t even legal, was conducted by researchers from the University of Colorado and the University of Minnesota and published in the journal, Psychological Medicine. The subjects were twins.
The study found that while alcohol consumption between U.S. states didn’t vary greatly, twins who lived in legal cannabis states were less likely to face harm when under the influence of alcohol.
“Recreational legalization was associated with increased cannabis use and decreased AUD symptoms, but was not associated with other maladaptations,” researchers wrote. Investigators further determined that states with legal cannabis didn’t have a higher rate of psychosocial disorders, a concern for many people who don’t support legalizing marijuana.
Despite the promising evidence, study
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