At what time of day is drowsy driving most likely to occur?

Drowsy driving is most likely to occur during late night or early morning hours due to the body's natural circadian rhythm. During these times, many people experience a dip in alertness and are more susceptible to fatigue. The biological clock signals for rest typically peak during these hours, which can significantly impair a driver's ability to stay awake and attentive.

Additionally, individuals who work night shifts or have irregular sleeping patterns may be particularly prone to drowsy driving during these late hours. Reckless behaviors like driving after an extended period of wakefulness or insufficient sleep can result in decreased reaction times and an increased likelihood of accidents. Understanding this risk period is critical for promoting safer driving behaviors.