Compound Fatigue Risk in Medium-Haul Pilots.

Operational fatigue factors related to higher work volume (e.g., working longer hours, shorter breaks, etc.) were rated as more fatiguing. Schedule features that impinge on the window of circadian low (e.g., early starts, late ends) were fatiguing even in M-H pilots with daytime schedules that allow for sufficient sleep duration. Devine JK, Hursh SR, Behrend J. Compound fatigue risk in medium-haul pilots. Aerosp Med Hum Perform. 2025; 96(12):1063-1068.