What type of fatigue results from a pilot not getting enough rest day after day?

Chronic fatigue is characterized by a long-term state of exhaustion that develops gradually over time due to insufficient rest and recovery. In the context of a pilot not getting enough rest day after day, this condition accumulates, as the cumulative effects of sleep deprivation and continuous work lead to decreased performance and increased risk of errors. Chronic fatigue can significantly impair cognitive function, reaction times, and overall well-being, making it particularly concerning in high-stakes environments like aviation where alertness and decision-making are critical. It differs from acute fatigue, which generally occurs after a singular, intense effort or long period of strain, and burnout fatigue, which is often linked to work-related stress and emotional exhaustion. Duration fatigue is not a commonly recognized term in this context and does not accurately capture the ongoing, persistent nature of fatigue that results from long-term inadequate rest.