Physiological adjustments to altitude changes.
D000064:Acclimatization; D000222:Adaptation, Physiological; D000367:Age Factors; D000531:Altitude; D000818:Animals; D001833:Body Temperature Regulation; D004285:Dogs; D005221:Fatigue / Q000503:physiopathology; D006801:Humans; D000860:Hypoxia / Q000503:physiopathology; D008800:Mexico; D010101:Oxygen Consumption; D005082:Physical Exertion; D013997:Time Factors