During what times should you be particularly cautious about drowsy driving?

Being particularly cautious about drowsy driving during early morning and late at night aligns with common patterns of human circadian rhythms and sleep cycles. Our bodies naturally experience increased levels of drowsiness during these times due to the body's biological clock, which signals sleepiness primarily during the nighttime hours and early mornings when alertness is typically lower.

Research has shown that many people face increased risks of drowsy driving during these periods because they are likely to have experienced less sleep or are operating outside their usual awake hours. Sleep deprivation can significantly impair reaction times and decision-making abilities, comparable to the effects of alcohol.

While other times, such as during rush hour, sunny conditions, or on holiday weekends, can present their own challenges, the risk of drowsy driving is particularly heightened when circadian rhythms are at play, making the early morning and late night the most critical times to be vigilant.