Per a new study from Harvard Medical School and Northwestern University.
The study conducted by Dr. Hans Breiter of Northwestern University compared the brain scans of marijuana users with brain scans of nonusers. The results showed a direct correlation between the number of times users smoked marijuana and abnormalities in the brain effecting motivation and emotion.
The study determined that pot users who smoke one to seven joints a week had negative changes in the volume, shape and density of their brain’s nucleus accumbens and amygdala, which are regions of the brain that regulate emotion and motivation.
“What we are seeing is changes in people’s core brain regions that you never ever want to fool around with. More studies are needed to determine how these changes may have long-term consequences and whether they can be fixed with abstinence,” said Dr. Breiter.
The National Institute on Drug Abuse and the White House Office of National Drug Control Policy helped fund the study, which was published in the Journal of Neuroscience by Harvard Medical School, in cooperation with Northwestern University’s Feinberg School of Medicine at Massachusetts General Hospital.
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