What is the first thing alcohol affects in a person?

• A. Judgements and self-control
• B. Energy level
• C. Hearing
• D. Balance

Answer: (A)

Alcohol first affects brain function, specifically higher-level thinking like judgment and self-control. When the brain’s executive functions slow down, a person may misjudge risks, make impulsive choices, and ignore hazards, which is why these cognitive abilities are the initial and most noticeable effects. Other options—energy level, hearing, or balance—are not the earliest changes. Energy perception can vary and isn’t the primary impairment; hearing impairment isn’t typically the first sign, and balance problems come later as coordination and the cerebellum are affected with higher levels of intoxication. So the earliest and most safety-critical impact is on judgment and self-control.