Fantastic facts about the human body – we are truly awesome: *Every square inch of human skin consists of twenty-five feet of blood vessels. *A cough releases an explosive charge of air that moves at speeds up to 60mph. *Your body uses 300 muscles to balance itself while standing still. *The eye of a human can distinguish between 500 shades of gray. *The width of your arm span stretched out is equal to the length of your whole body.
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