What is hypoxia?

Hypoxia is a condition characterized by insufficient oxygen reaching the tissues of the body. This can occur at high altitudes where there is a decrease in atmospheric pressure, leading to less available oxygen for respiration. As an individual ascends to higher altitudes, the body may not be able to absorb enough oxygen, which can result in various symptoms including dizziness, fatigue, and even loss of consciousness. Understanding hypoxia is crucial for pilots, as it can impair cognitive function and physical abilities, making it essential for them to recognize the signs and take appropriate actions, such as descending to a lower altitude or using supplemental oxygen. This distinction highlights its critical impact on flight safety and performance.