Which of the following is NOT an effect of fatigue and stress?

Increased awareness is not an effect of fatigue and stress because those states typically lead to a decline in cognitive functions and situational awareness. When a person is fatigued or stressed, their ability to process information, concentrate, and maintain attention diminishes. This can result in mistakes and a lack of comprehension of vital information, effectively reducing awareness. In situations like flying, where situational awareness is crucial for safety, fatigue and stress can have detrimental consequences.

On the other hand, discomfort, decreased performance, and timing disruption are all well-documented effects of fatigue and stress. Discomfort can arise from physical and mental strain, decreased performance is a direct result of impaired cognitive and physical capabilities, and timing disruption can occur as a consequence of impaired decision-making and reaction times. These effects highlight the importance of managing stress and fatigue, especially in aviation settings.