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.
9
Men laugh longer, louder, and more often than women.
61
Karl Pillemer, a professor, performed a study on thousands of elderly people and what advice they had about life. On happiness, there was a consensus: “the elders viewed happiness as a choice, not the result of how life treats you.”
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Roughly a quarter of the world's people live in China.
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On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
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Children grow faster in the springtime than any other season during the year.
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Women who play video games tend to have more sex and be happier with their relationships than those who don’t.
18
A couple had their wedding rings engraved with a waveform of their own voices saying "I do."
10