title: Mammalian sleep, longevity, and energy metabolism.
mesh_terms: D000818:Animals; D001921:Brain / Q000033:anatomy & histology; D004734:Energy Metabolism; D008136:Longevity; D008322:Mammals / Q000502:physiology*; D009929:Organ Size; D012890:Sleep / Q000502:physiology*; D013045:Species Specificity; D013997:Time Factors