title: Mechanisms of acute and chronic effects of microgravity.
mesh_terms: D000222:Adaptation, Physiological; D006706:Homeostasis; D006728:Hormones / Q000502:physiology; D006801:Humans; D009046:Motor Neurons / Q000502:physiology; D009424:Nervous System Physiological Phenomena; D013026:Space Flight; D014893:Weightlessness
chemical_list: D006728:Hormones