What is a common effect of driving while fatigued?

Driving while fatigued commonly leads to decreased reaction time. When a driver is tired, their cognitive functions and physical responses become impaired. This means they may take longer to process information on the road, such as recognizing traffic signals, pedestrians, or sudden changes in traffic conditions. The brain does not function as efficiently, leading to slower deliberation and response to potential hazards.

This effect is crucial for understanding safe driving practices; a driver with decreased reaction time may not be able to brake in time to avoid an obstacle or may fail to adjust their speed appropriately. In essence, being well-rested is essential for maintaining optimal driving performance and ensuring the safety of everyone on the road.