title: Physiological problems of space travel.
mesh_terms: D000054:Acceleration; D000222:Adaptation, Physiological; D016275:Atrial Function; D001810:Blood Volume; D001919:Bradycardia / Q000209:etiology; D002302:Cardiac Output; D003649:Decalcification, Pathologic / Q000209:etiology; D004562:Electrocardiography; D005080:Exercise Test; D005438:Fludrocortisone; D006112:Gravitation; D006801:Humans; D007668:Kidney / Q000098:blood supply; D009748:Nutrition Disorders; D010806:Physical Education and Training; D011187:Posture; D001261:Pulmonary Atelectasis / Q000209:etiology; D012039:Regional Blood Flow; D012119:Respiration; D013026:Space Flight; D013312:Stress, Physiological / Q000503:physiopathology; D013909:Thorax / Q000502:physiology; D014667:Vasopressins / Q000097:blood; D014690:Venous Pressure; D014692:Ventilation-Perfusion Ratio; D014893:Weightlessness
chemical_list: D014667:Vasopressins; D005438:Fludrocortisone