A https://www.eurekalert.org/pub_releases/2021-03/tes-hg031821.php by the Massachusetts General Hospital and Harvard Medical School, Boston finds (as we’ve long suspected),
“…that ghrelin [“the hunger hormone”] might play a broader role than previously acknowledged in human reward-related behavior and decision making, such as monetary choices,"
"This will hopefully inspire future research into its role in food-independent human perception and behavior."