Facts: It takes 7 seconds for food to pass from mouth to stomach. A human hair can hold 3kg before it snaps. The length of the penis is 3 times the length of the thumb. The femur is as hard as concrete. A woman's heart beats faster than a man's. We use 300 muscles to keep our balance when we stand. A woman will read this entire text. A man is still staring at his thumb.
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