Cannabis Connection: Does Weed Make You Dumb?

“Sometimes I have a brain that needs to be turned off,” said Justin Timberlake in a 2011 interview titled “Why I Smoke Pot.” He continued, “Some people are just better high.”

Timberlake said cannabis helped him relax during times when endless responsibilities swirl around in his head, which is a far cry from the stoner stereotype that depicts amotivational Jeff Spicoli types banging their heads with a shoe. That stoner stereotype, however, sometimes gets a public boost, which happened a year after Timberlake’s confession.

In August 2012, Proceedings of the National Academy of Sciences of the United States of America (PNAS) published “Persistent cannabis users show neuropsychological decline from childhood to midlife,” a Duke University-led study that claimed chronic teen cannabis use led to a permanent drop in IQ points. This bombshell study led to headlines like “Drop in IQ

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