What effect can inhalants have on the central nervous system?

Inhalants primarily act as depressants on the central nervous system (CNS), leading to various effects on an individual's mental and physical state. The correct answer, which highlights reduced inhibition and drowsiness, reflects these common outcomes.

When individuals use inhalants, substances such as solvents or gases lead to diminished physiological responses and impaired cognitive functions. This often translates to a feeling of euphoria or a decrease in anxiety and inhibitions, which is why users might feel more relaxed or less constrained in a social setting. Alongside decreased inhibition, drowsiness is a prevalent effect, as the depressant nature of these substances can slow brain activity and lead to sedation.

Understanding this aspect of inhalants is crucial for recognizing the potential risks associated with their use, including the danger of overdose, which can result from the sedative effects leading to respiratory depression or unconsciousness. The other options incorrectly suggest effects that are not characteristic of inhalant use on the CNS, such as increased stimulation, enhanced memory retention, or increased muscle tone, which are not typically associated with these substances.