The world's shortest man measures only 21.5 inches.
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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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Pain occurs when sounds are above 130 db.
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On average, there's 100 billion neurons in the human brain.
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Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
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On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
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There are about 255 babies born worldwide every minute.
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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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