Does the psychophysical condition of the person at the wheel affect their reaction capacity?

Question

DentroTest · Accepted Answer

Reaction capacity and reaction time depend directly and intrinsically on the driver's psychophysical condition. Factors such as fatigue, sleepiness, stress, and the consumption of alcohol, drugs or certain medicines markedly reduce reaction capacity and increase reaction time (taking more seconds to process stimuli and act). This effect occurs in any setting or circumstance, whether on urban or interurban roads, so limiting this influence to interurban roads only is incorrect. Likewise, external factors such as speed or the condition of the roadway do not alter the individual's psychophysical abilities, although they do influence the total stopping distance.

Does the psychophysical condition of the person at the wheel affect their reaction capacity?

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