Colorado Study Links 1,000-Plus Cannabis Users to Reduced Memory-Task Brain Activity
Updated
Updated · NBC Palm Springs · Jun 17
Colorado Study Links 1,000-Plus Cannabis Users to Reduced Memory-Task Brain Activity
3 articles · Updated · NBC Palm Springs · Jun 17
Summary
More than 1,000 adults' brain scans showed lower activity during working-memory tasks among many recent cannabis users and people with heavy lifetime use, according to University of Colorado Anschutz researchers.
Dr. Josh Gowin said the study aimed to clarify both short- and long-term marijuana effects on brain function, focusing on memory and attention rather than behavior alone.
Researchers said the findings add to earlier studies tying cannabis use to psychosis risk and other cognitive concerns, while possible links to dementia and other neurological conditions remain under study.
Palm Springs dispensary worker Kobe said the results matter but argued effects can vary by strain, underscoring the study's broader takeaway that consumers need more evidence on whether any brain changes are reversible.