Alcohol enters the bloodstream and quickly reaches the brain. Which of the following is affected first?

Alcohol enters the bloodstream and quickly reaches the brain. Which of the following is affected first?

• A. Coordination
• B. Judgement
• C. Reflex speed
• D. Vision

Answer: (B)

Alcohol first dulls the brain’s higher-level thinking, especially the frontal lobe that handles judgment, decision-making, and self-control. When judgment is impaired, a person may misjudge speed, distance, or risk, and make poor driving choices even if they don’t yet notice slower reflexes. That early drop in executive function is why judgment is the first function affected. As intoxication deepens, other abilities like reflex speed, coordination, and vision become more noticeably impaired, but the initial sign is a decline in judgment. This is why even small amounts can lead to risky decisions behind the wheel, before you feel noticeably clumsy or see double vision.

Alcohol first dulls the brain’s higher-level thinking, especially the frontal lobe that handles judgment, decision-making, and self-control. When judgment is impaired, a person may misjudge speed, distance, or risk, and make poor driving choices even if they don’t yet notice slower reflexes. That early drop in executive function is why judgment is the first function affected.

As intoxication deepens, other abilities like reflex speed, coordination, and vision become more noticeably impaired, but the initial sign is a decline in judgment. This is why even small amounts can lead to risky decisions behind the wheel, before you feel noticeably clumsy or see double vision.