Researchers controlled for demographic variables - such as marital status, parents' education, earnings, childhood social class and more - that may have also affected adult drinking. Still, the findings held true: Smarter kids were drinking more as adults.
So why do smarter kids end up drinking more? Hypotheses abound.
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Psychology Today takes an evolutionary approach. They argue that drinkable alcohol is a relatively novel invention of 10,000 years ago. Our ancestors had previously gotten their alcohol kick through eating rotten fruits, so more intelligent humans may be more likely to choose modern alcoholic beverages.
Although increased alcohol consumption could be a reflection of exceptional brainpower, drinking more will certainly not make you any more intelligent than you already are.