Awarding people money for doing well in IQ tests causes them to score better, $10 increased people's score by an average of more than 20 IQ points. IQ tests don’t just measure intelligence - they also measure effort.
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People who are more likeable and attractive are generally perceived as more intelligent. This is called the “Halo Effect.”
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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Studies suggest that people who appear to be constantly distracted have more "working memory" and "sharper brains".
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Every three seconds, a new baby is born.
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Babies cry but they don't produce tears until one to three months after birth.
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