Hence the saying " blind drunk "
It is classed as a depressant, meaning that it slows down vital functions—resulting in slurred speech, unsteady movement, disturbed perceptions and an inability to react quickly.
Psychology - Alcohol
One of the most widely used drugs, alcohol is a depressant to the
central nervous system. This means that it depresses or slows down the
functioning of the body's cells and organs until they are less efficient.
Its effect on the brain influences the centre responsible for co-ordinating
the senses, perception, speech and judgment.
One of the short-term effects of excessive alcohol is distorted vision. It
alters one's perceptions and can reduce attention and concentration to
external stimuli. Therefore, a person under the influence of alcohol may
not be fully attending to the environment and may find it difficult to make
judgments about objects around them. For example, they might miscalculate
the space between them and a chair or the distance of an oncoming car.
Central nervous system damage is a long-term effect of heavy alcohol use.
Alcohol can effect the cerebellum, the structure of the brain which
coordinates eye and hand movements.
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