Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
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A person will create enough saliva to fill two average size swimming pools during his lifetime.
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Human hair and fingernails continue to grow after death.
7
Your thumb is about the same size as your nose.
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Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
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Yawns are more contagious among people with closer relationships.
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Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
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Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
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