Why can alcohol seem like a stimulant even though it is a depressant?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Although alcohol is classified as a depressant that affects the central nervous system, it can produce paradoxical effects that make it appear to act as a stimulant or excitant under certain conditions.12

This perceived excitement is not caused by a direct stimulation of behavior. Instead, it occurs because alcohol suppresses the inhibitory centers of the brain. By dampening these control mechanisms, alcohol leads to a loss of socially expected restraints, which manifests as exhilaration, loquaciousness, and mood changes.1

While these behaviors may seem energetic, they are accompanied by impaired motor functions and judgment, as alcohol simultaneously disrupts the brain centers responsible for muscle activity and higher cognitive functions like thinking and learning. As concentrations of alcohol in the body increase, its sedative properties become more pronounced, eventually leading to stupor or coma at very high levels.12