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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Women rate men more attractive if other women are looking and smiling at him.
17
The average person falls asleep in seven minutes.
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You share your birthday with at least 9 other million people in the world.
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Senegalese women spend an average of 17.5 hours a week just collecting water.
27
Infants spend more time dreaming than adults do.
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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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Americans throw out 4.5 pounds of trash a day - twice that of 40 years ago.
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