By 2017, as the P2P meth from Mexico arrived, the men were coming to her stripped of human energy, even after several months in custody. “Their dopamine receptors don’t work anymore; nothing is pleasurable for months,” she said. “Normal recreational activities where guys talk trash and have fun, there’s none of that. It’s like their brain cannot fire. All the functions of the prefrontal cortex, the decision making and immediate response we have to stimuli, are extremely slow. They’ve been so overstimulated that normal brain chemistry doesn’t stimulate them. We don’t see a lot of anger at
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