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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40% of people who are rejected in romantic love slip into clinical depression.
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76% of Americans celebrate New Year's Eve in groups of less than 20.
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People in parts of Western China put salt in their tea instead of sugar.
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Babies cry but they don't produce tears until one to three months after birth.
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A hard working adult sweats up to 4 gallons per day.
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