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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Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
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Human hair and fingernails continue to grow after death.
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The human sigh acts as a physiological reset button.
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Gorillas can catch human colds and other illnesses.
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It takes about 20 seconds for a red blood cell to circle the whole body.
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Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
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A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
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