Which substance is known to decrease reaction time while driving?

Alcohol is known to significantly decrease reaction time while driving. When consumed, alcohol affects the central nervous system, leading to impaired cognitive functions and slower reflexes. This means that a driver’s ability to respond quickly to sudden changes in traffic or road conditions is diminished. It also affects coordination, balance, and decision-making skills, which are crucial for safe driving.

In contrast, caffeine, while it can stimulate alertness and potentially improve reaction times, does not impair cognitive function in the same way as alcohol. Protein and Vitamin C do not have a direct impact on reaction times related to driving; they might contribute to overall health and energy levels, but they do not cause the same detrimental effects on driving abilities as alcohol does. This understanding underscores the risks associated with alcohol consumption in driving situations, highlighting its impact on keeping roads safe.