Discuss four effects on perception and judgment triggered by even moderate consumption of alcohol.

(answers should touch on at least four of the following effects)
Moderate amounts of alcohol can have disturbing effects on perception and judgment, including the following:
 Impaired perceptions. You're less able to adjust your eyes to bright lights or to distinguish between sounds or judge their direction well.
 Dulled smell and taste. Alcohol may cause some vitamin deficiencies, and the poor eating habits of heavy drinkers result in further nutrition problems.
 Diminished sensation. On a freezing winter night, you may walk outside without a coat and not feel the cold.
 Altered sense of space. You may not realize, for instance, that you have been in one place for several hours.
 Impaired motor skills. Writing, typing, driving, and other abilities involving your muscles are impaired. This is why law enforcement officers sometimes ask suspected drunk drivers to touch their nose with a finger or to walk a straight line.
 Sleep problems. Even a single drink can increase snoring in normal sleepers and worsen sleep apnea in those with this disorder. Among young adults, binge drinking increases the frequency and severity of sleep problems.
 Impaired sexual performance. While drinking may increase your interest in sex, it may also impair sexual response, especially a man's ability to achieve or maintain an erection.

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