There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
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Enamel is hardest substance in the human body.
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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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The human brain has the capacity to store everything that you experience.
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When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
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The average sperm cell swims at 8 inches per hour.
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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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