It takes food seven seconds to get from your mouth to your stomach . A single human hair can support 3 kg (6 . 6 lb) . The average man's penis is three times the length of his thumb . Human thighbones are stronger than concrete . A woman's heart beats faster than a man's . There are about one trillion bacteria on each of your feet . Women blink twice as often as men . The average person's skin weighs twice as much as the brain . Your body uses 300 muscles to balance itself when you are standing still . If saliva cannot dissolve something, you cannot taste it . Women reading this will be finished now. Men are still busy checking their thumbs.
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