States that opened recreational marijuana dispensaries saw suicide rates decline among older adults, according to a new scientific analysis of more than two decades of nationwide data. Correlating state legalization to the decline, the researchers note a “modest yet statistically significant reduction” in states with legal access to cannabis.
The research, conducted by a team of public health economists, examined monthly suicide counts from U.S. states between 2000 and 2022. Their aim was to better understand whether easier access to marijuana, specifically through licensed retail stores, might have any measurable effect on mental health outcomes. Their working paper, published by the National Bureau of Economic Research, shows that may be the case.
The study found that in states where recreational cannabis dispensaries began operating, suicide rates among adults ages 45 and older declined. The effect was strongest among men, who historically have had significantly higher suicide rates and are more likely to use cannabis to manage chronic pain, a health challenge that increases the risk of suicide.
“Given that older adults are more prone to chronic pain and various physical and mental health issues, it is not surprising that this demographic is increasingly turning to marijuana for its medicinal properties,”
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