What is 'hypoxia' in aviation?

Hypoxia in aviation refers specifically to a condition that occurs when there is insufficient oxygen available to the body. This can happen at high altitudes where the atmospheric pressure is lower, resulting in less available oxygen for breathing. Pilots and crew members need to be aware of the symptoms of hypoxia, which can include confusion, dizziness, and impaired judgment, as it can significantly affect their performance and decision-making ability. Understanding hypoxia is crucial for ensuring safety during flight, particularly in unpressurized aircraft or during rapid ascent to high altitudes where supplemental oxygen may be required to maintain adequate oxygen levels in the body.