According to some estimates, Americans are sitting on $30 billion worth of unredeemed gift cards.
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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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Men laugh longer, louder, and more often than women.
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Americans did not commonly use forks until after the Civil War.
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The first man to swim the length of Great Britain grew a beard to stop jellyfish stinging his face.
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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
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Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
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