National Certified Addiction Counselor, Level I (NCAC I) Practice Exam 2025 – Comprehensive All-in-One Guide to Exam Success!

Question: 1 / 400

Which organ is not affected by alcohol?

Heart

Brain

Liver

Ear

The ear is considered the correct answer in this context because it is not directly affected by alcohol in the same way that the heart, brain, and liver are. Alcohol has well-documented effects on the heart, such as influencing heart rate and contributing to high blood pressure. It impacts the brain significantly, causing alterations in mood, behavior, and cognitive functions. The liver is critical in metabolizing alcohol, and excessive consumption can lead to liver damage or disease, such as fatty liver, hepatitis, or cirrhosis. However, while alcohol can influence hearing and balance through its effects on the central nervous system, the ear itself does not suffer the same direct physiological damage from alcohol as these other organs do, making it the correct response in this question.

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