Circadian Rhythm
Definition
The body natural 24-hour biological clock that regulates sleep-wake cycles. Disruption from jet lag, night flying, or irregular schedules increases fatigue risk and degrades cognitive performance.
Why Circadian Rhythm Matters for Pilots
Understanding Circadian Rhythm is important for pilot certification exams and safe flight operations. This concept appears on FAA and EASA knowledge tests, and examiners may ask about it during oral checkrides. A thorough understanding of Circadian Rhythm helps you make better decisions in the cockpit.
Exam Tip
This concept is commonly tested in human-factors-related questions on FAA and EASA exams. Make sure you can explain Circadian Rhythm in your own words for the oral exam. Practice applying this concept to real-world scenarios, not just memorizing the definition.
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