Metabolic & Weight Orforglipron Reaches Deep Into the Brain's Reward Circuit and Turns the Dopamine Down
In mice engineered with human GLP-1 receptors, the new oral pills reached the central amygdala, a deep reward hub, and thinned the dopamine payoff of eating for pleasure. The government's addiction institute is already watching.
By Sarah Okonkwo · July 26, 2026