Which response best describes the effects of drowsiness while driving?

Drowsiness while driving primarily leads to reduced reaction time, which can have serious consequences on the road. When a driver is sleepy, their ability to respond effectively and swiftly to sudden changes in the driving environment is significantly impacted. This includes difficulties in braking, steering, or adjusting speed in response to traffic signals or obstacles.

Additionally, drowsiness can impair cognitive functions, such as decision-making and judgment, further complicating the driving process. Therefore, acknowledging that drowsiness reduces reaction time reinforces the importance of remaining alert while driving to ensure not only personal safety but also the safety of other road users.