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Best Answer: Alcohol or ethanol affects the human nervous system by inhibiting signals between the brain, nerve endings and spinal cord. When people drink, their bloodstream absorbs the alcohol and nervous system functions slow down dramatically--this is the buzz or numbness people commonly feel after drinking.
1. For the effect. Many people drink alcohol for the effect that alcohol has on the central nervous system. It is both a depressant and a stimulant, and drinking can result in feelings of euphoria, disorientation or a pleasurable release of tension.2.Out of curiosity. People may drink simply to experiment with alcohol and judge whether or not drinking is for them.t is both a depressant and a stimulant, and drinking can result in feelings of euphoria, disorientation or a pleasurable release of tension. 2. Out of curiosity. People may drink simply to experiment with alcohol and judge whether or not drinking is for them.