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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Most people turn their music down in the car when finding a street sign to "see better".
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Women who read romance novels have sex twice as often as those who don't.
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On average, a person will spend about five years eating during his or her lifetime.
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It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
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35% of the people using personal ads for dating are already married!
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The world's shortest man measures only 21.5 inches.
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