Tonsillectomy relieves hypersomnolence.
D000402:Airway Obstruction / Q000601:surgery*; D006970:Disorders of Excessive Somnolence / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012891:Sleep Apnea Syndromes / Q000601:surgery*; D012893:Sleep Wake Disorders / Q000601:surgery*; D014068:Tonsillectomy