What is a common sign of fatigue while driving?

Frequent yawning or heavy eyelids are common signs of fatigue while driving because they indicate that the driver is experiencing drowsiness. This physical response is the body's way of signaling that it needs rest. Yawning is often associated with a lack of alertness, and heavy eyelids suggest that the driver may struggle to keep their eyes open and focused on the road. Recognizing these signs is crucial for ensuring road safety, as fatigue can dramatically impair a driver's reaction times and decision-making abilities, similar to the effects of alcohol consumption.

In contrast, increased speed may not necessarily indicate fatigue; rather, it could stem from aggressive driving behavior. Playing loud music could serve to keep a driver alert for some, but it may also distract others. Excessive thirst might point to dehydration or other health issues, which, while important, do not directly signify fatigue in the context of driving. Understanding these signs is essential for any driver to maintain focus and safety on the road.