12. “Whoever drinks beer is quick to sleep” goes a familiar quote. 
However, alcohol appears to have a paradoxical effect on sleep. In fact, studies show that imbibing small amounts before bed can reduce the amount of time it takes to nod off. On the other hand, excess quantities do interfere with the quality of sleep by increasing both alpha and delta brainwave activity, which leads to less restorative forms of slumber. No wonder a little too much to drink the night before can leave you groggy and grouchy the next day.
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