For all those folks out there who still believe the myth that pot is a harmless drug, please read this new research.
Smoking marijuana regularly before the age of 16 causes changes in the brain that can impair a young person’s ability to focus, learn from mistakes and think abstractly, according to a Harvard study.
On brain scans, the youngest pot smokers showed activation in regions of the brain that was not seen in those who started smoking after age 16, suggesting early exposure to marijuana causes neural changes, researchers at Harvard-affiliated McLean Hospital found. Early and habitual users performed more poorly on tests of cognitive functions, including mental flexibility.
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