Which of the following is an irreversible effect of inhalants?

• A. Short-term dizziness
• B. Temporary euphoria
• C. Increased concentration
• D. Hearing loss

Answer: (D)

Inhalants can slow brain activity and alter neurotransmitter signals, which produces short-lived effects like dizziness and a sense of euphoria that fade once the substance is cleared from the body. These are temporary and reversible with time or cessation. In contrast, repeated exposure can damage the auditory system itself—affecting the inner ear structures or the auditory nerve—leading to permanent sensorineural hearing loss. This kind of damage doesn’t heal on its own, so it’s the irreversible impact of inhalant use.