Pilot fatigue refers to the physical and mental exhaustion that pilots experience due to long hours, irregular schedules, and insufficient rest. This fatigue can impair a pilot's ability to make quick decisions, maintain focus, and respond to emergencies, potentially compromising flight safety. To combat pilot fatigue, airlines and regulatory bodies implement strict guidelines on flight hours and mandatory rest periods. These measures aim to ensure that pilots are well-rested and alert, reducing the risk of accidents and enhancing overall aviation safety. Proper management of pilot schedules and crew rest is essential in maintaining operational efficiency.