Mammals do not have the prefrontal cortex capacity to voluntarily stop eating before satiation; they rely on hardwired instincts to ensure adequate food intake.

“no other animal first of all can do that because they don't have the prefrontal cortex to make that decision they run on the hard wires in the back of the brain that's like no dudes you're not full you need to break out of this effing cage and eat the experimenter because you're not you're gonna die you're not eating enough food”