title: Sleep as a restorative process and a theory to explain why.
mesh_terms: D000255:Adenosine Triphosphate / Q000378:metabolism; D000818:Animals; D001921:Brain / Q000502:physiology; D004435:Eating; D004734:Energy Metabolism; D006728:Hormones / Q000502:physiology; D006801:Humans; D008938:Mitosis; D010507:Periodicity; D014176:Protein Biosynthesis; D012890:Sleep / Q000502:physiology*; D012895:Sleep, REM / Q000502:physiology
chemical_list: D006728:Hormones; D000255:Adenosine Triphosphate