Vestibular problems in space travel.
D000054:Acceleration; D000222:Adaptation, Physiological; D007758:Ear, Inner / Q000502:physiology*; D005118:Extraterrestrial Environment; D006801:Humans; D009041:Motion Sickness; D004856:Postural Balance; D012399:Rotation; D013026:Space Flight; D014722:Vestibule, Labyrinth / Q000502:physiology; D014893:Weightlessness