Which enemy of survival may lead to impaired decision making?

Fatigue is a significant enemy of survival that can impair decision-making capabilities. When an individual is fatigued, their cognitive function is compromised, leading to difficulties in concentration, slowed reaction times, and an overall decline in mental acuity. This can lead to poor judgment and an increased likelihood of making mistakes in critical situations, especially where quick thinking and alertness are required for survival.

Maintaining mental sharpness is essential during survival situations, and fatigue detracts from this ability, making a person more prone to errors, miscalculations, or indecision, which can have serious consequences. While thirst, fever, and boredom can also affect a person's physical or emotional state, the overwhelming impact of fatigue on cognitive processes makes it particularly detrimental in high-stress survival scenarios.