The largest cell in the human body is the female egg and the smallest is the male sperm.
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Your body is creating and killing about 2.4 million red blood cells per second.
17
The average sperm cell swims at 8 inches per hour.
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The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Your thumb is about the same size as your nose.
124
One human hair can support 3 ounces.
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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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An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
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