People who wake up early due to afternoon fatigue have less ability to drive in the afternoon. This has been shown by a published study. International Journal of Human Factors and Ergonomics (IJHFE).
The experiment involved 12 men who described themselves as early risers. They were asked to complete various driving tasks before and after lunch.
It turns out that afternoon sleepiness significantly impairs the reaction speed and alertness of early risers. They themselves reported a subjective feeling of fatigue after eating.
The authors of the study suggest that the effects they discovered may be related to the natural circadian rhythm of the body of those who like to wake up early. At the same time, driving time did not affect the performance of the experimental participants; The main factor was afternoon fatigue.
Scientists noted that it is important to consider both chronotype and time of day when developing theoretical models of driver behavior. This will allow us to introduce new road safety measures and reduce the number of accidents.
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