When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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On average a woman has 4 sexual partners in her lifetime.
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It takes approximately 12 hours for food to entirely digest.
93
A man's beard grows fastest when he anticipates sex.
239
The human sigh acts as a physiological reset button.
23
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
A person can live without food for about a month, but only about a week without water.
156