title: The physiological psychology of hunger: a physiological perspective.
mesh_terms: D000818:Animals; D004734:Energy Metabolism; D005247:Feeding Behavior / Q000502:physiology; D006801:Humans; D006815:Hunger / Q000502:physiology*; D007033:Hypothalamus, Middle / Q000502:physiology; D008099:Liver / Q000502:physiology