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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The Japanese commonly put ketchup on their rice.
16
Senegalese women spend an average of 17.5 hours a week just collecting water.
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8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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40% of people who are rejected in romantic love slip into clinical depression.
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The world's youngest parents were 8 and 9 and lived in China in 1910.
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Intelligent people have more zinc and copper in their hair.
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Men fall in love faster than women do.
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