an area called the dorsal medial prefrontal cortex (dmPFC). They took the losers, who had become timid and submissive, and flipped a switch to activate the dmPFC. Almost like magic, the losers transformed, winning 90 percent of the shoving matches in the tube. According to one of the authors, “It’s not aggressiveness per se, it increases their perseverance, motivational drive, grit.”