Biometric Indicators of Fatigue: Wearable Monitoring Systems in Aviation

Pilot fatigue is a critical human-factor risk in aviation, contributing to cognitive errors and safety incidents. This article explores how biometric indicators and wearable monitoring systems can enhance fatigue management for pilots. Drawing on theoretical frameworks from neuroergonomics and recent advances in sensor technology, we examine the neurophysiological markers of fatigue and methods to track cognitive workload in real time. We discuss emerging neuroadaptive wearable systems that continuously monitor pilots’ physiological signals (such as brain activity, heart rate variability, and eye movements) and adapt to individual baselines to provide early fatigue warnings. Key ethical and operational challenges—including data privacy, pilot acceptance, and integration with existing flight operations—are analyzed to ensure that technology supports rather than undermines crew trust and performance.