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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Most people smile when they are frustrated, according to a study.
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Forty percent of Americans have never visited a dentist.
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In one day an average person will take about 18,000 steps.
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In the presence of attractive women, men find running easier, take more risks, donate more money, consume more calories, and talk more.
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Boys who have unusual first names are more likely to have mental problems than boys with conventional names. Girls don't seem to have this problem.
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Children's sense of smell is better than adults'.
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Approximately 141 million Valentine's Day cards are exchanged worldwide every year.
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