Alcohol is a depressant, meaning that it inhibits or prevents functional or nerve activities.
Think of these activities as water pressure in a house (body). Under the effects of alcohol, the water pressure lowers and it gets difficult to shower or fill the toilet. If this happens all the time with chronic alcoholism, the owner of the house will increase the water pressure to balance the constant depressive effects of alcohol.
Now you remove alcohol cold turkey. The house is left with extremely high water pressure which can burst the pipes and cause other damage. This can ruin the house if not controlled.
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