Show fatigue is a condition that can be caused by a variety of factors, such as lack of sleep, stress, or overworking. It is characterized by physical and mental exhaustion, and can be indicated by two common behaviors: yawning and nodding off. Yawning is an involuntary reflex that is often associated with tiredness, while nodding off is a sign of drowsiness. Show fatigue can be managed by getting adequate rest, reducing stress, and taking breaks throughout the day.