Although marijuana is legal in some U.S. states and all of Canada, politicians continue to sometimes turn to the drug for blame. Most recently, the Dayton, Ohio mass shooting was blamed on marijuana and drag queens by Republican Ohio lawmaker Candice Keller.
Despite its hazy reputation, Truthout reports that recent research continues to debunk claims that marijuana harms the brain.
Marijuana was previously associated with lower cognitive functioning thanks to a 2012 study, which claimed that cannabis use in early adolescence was significantly associated with a decrease in IQ points — eight, in particular — by middle age. But a critique of the study suggested that the IQ decline was consistent with socioeconomic differences across those studied, and later, better-controlled studies reportedly failed to replicate the findings of the 2012 study.
A 2017 study by researchers at the University of Colorado examined the effect of marijuana exposure and alcohol ingestion on the structure of the brain in both adults and adolescents. The data suggested that while there is a connection between alcohol use severity and changes in lower brain matter in both adults and adolescents, no associations were found between such changes and “past 30-day cannabis use” in adults or adolescents.
The Truthout report ends with a call for a change in the approach to marijuana in the face of the facts.
Despite its hazy reputation, Truthout reports that recent research continues to debunk claims that marijuana harms the brain.
Marijuana was previously associated with lower cognitive functioning thanks to a 2012 study, which claimed that cannabis use in early adolescence was significantly associated with a decrease in IQ points — eight, in particular — by middle age. But a critique of the study suggested that the IQ decline was consistent with socioeconomic differences across those studied, and later, better-controlled studies reportedly failed to replicate the findings of the 2012 study.
A 2017 study by researchers at the University of Colorado examined the effect of marijuana exposure and alcohol ingestion on the structure of the brain in both adults and adolescents. The data suggested that while there is a connection between alcohol use severity and changes in lower brain matter in both adults and adolescents, no associations were found between such changes and “past 30-day cannabis use” in adults or adolescents.
The Truthout report ends with a call for a change in the approach to marijuana in the face of the facts.
It appears that politicians may be catching on. Forbes reports 2018 as “The Year Politicians Realized People Love Cannabis Reform,” noting that both Illinois and Connecticut elected governors that year that were receptive to legalizing marijuana. In addition, New York Governor Andrew Cuomo is “seriously debating” marijuana legalization in the state, where possession of small amounts is currently decriminalized.
