People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
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Children laugh about 400 times a day, while adults laugh on average only 15 times a day.
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Women have a slightly higher average IQ than men.
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It is estimated that at any one time, 0.7% of the world's population are drunk.
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Blonde hair is not exclusive to Europeans. Melanesians of the south Pacific evolved a different gene for blonde hair.
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