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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40% of people who are rejected in romantic love slip into clinical depression.
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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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The average single man is one inch shorter than the average married man.
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One in 500 humans has one blue eye and one brown eye.
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Approximately one-third of the population can't snap their fingers!
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Intelligent people have more zinc and copper in their hair.
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