How can fatigue affect driving performance?

Fatigue can significantly impair driving performance, primarily by slowing reaction times and negatively affecting decision-making capabilities. When a driver is fatigued, the brain's ability to process information and respond to road conditions diminishes. This results in delayed reactions to signals, obstacles, or changes in traffic. Furthermore, fatigue can lead to a decrease in attention, meaning that a driver may not fully notice important details or may misinterpret situations while on the road.

Being overly tired can also lead to impaired judgment, making it more challenging for a driver to evaluate risks appropriately and make safe choices in dynamic driving scenarios. This is particularly dangerous as it increases the likelihood of accidents or near-misses. In sum, fatigue critically undermines a driver's ability to perform safely and effectively behind the wheel.