How does alcohol consumption typically affect reaction time?

Alcohol consumption typically reduces reaction time due to its depressant effects on the central nervous system. When a person consumes alcohol, it interferes with the brain’s ability to process information and respond quickly to stimuli. This impairment affects coordination, judgment, and overall motor skills, leading to a slower response time. Research consistently shows that even small amounts of alcohol can diminish one's ability to react promptly in various situations, such as driving or engaging in sports.

In contrast, options indicating improvement in reaction time or an increase in alertness overlook the well-documented negative effects of alcohol on cognitive and motor functions. Thus, the statement that alcohol reduces reaction time aligns with established findings in the study of alcohol's physiological impacts.