Which sense is primarily affected by fatigue?

Fatigue has a significant impact on various physiological functions, but vision is the sense most notably affected. When a person is fatigued, their ability to process visual information can decline, leading to reduced clarity in sight, slower reaction to visual stimuli, and even blurred vision. This impairment can greatly affect tasks that require visual acuity and quick responses to visual cues, such as driving or working in security settings.

Research indicates that fatigue can result in difficulty with focusing, increased sensitivity to light, and reduced peripheral awareness, all of which compromise effective visual function. This is particularly crucial for tasks where keen observation is necessary, such as law enforcement activities. Therefore, understanding how fatigue affects vision is essential for maintaining safety and effectiveness in high-stakes environments.