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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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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Only about 2% of the world population has green eyes.
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Most people smile when they are frustrated, according to a study.
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47% of people have a nightmare at least once a month.
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Identical twins do not have identical fingerprints.
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The average bra size today is 36C. Ten years ago it was 34B.
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