Can we please stop pretending marijuana is harmless?

Friday, October 9, 2015

Levy says. “We are simply not prepared for the fallout of marijuana legalization.”
Each hit of THC rewires the function of this critical cognitive system: Early evidence in mice has shown that repeated exposure to THC causes these receptors to disappear altogether, blunting the natural response to positive behaviors and requiring higher doses to achieve the same effect. Marijuana exploits essential pathways we’ve evolved to retrieve a memory, to delicately regulate our metabolism, and to derive happiness from everyday life.