High-Altitude Physiology

High-altitude physiology involves how the body adapts to lower oxygen levels found in thin air above 8,000 feet. At these heights, there’s less oxygen for each breath, prompting the body to respond by increasing breathing rate, producing more red blood cells to carry oxygen, and adjusting blood flow. These changes help maintain vital functions. However, if someone ascends too quickly or stays too long without proper acclimatization, they may experience altitude sickness, which includes symptoms like headaches, fatigue, and dizziness. Over time, most people adapt, but severe cases require medical attention.