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It takes 7 seconds for food to pass from mouth to stomach. A human hair can hold 3kg. The length of a penis is 3x the length of the thumb The femur is as hard as concrete. A woman's heart beats faster than a man's. Women blink 2x as much as men. We use 300 muscles just to keep our balance when we stand. A woman has read this entire post. The man is still looking at his thumb.
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