The world's shortest man measures only 21.5 inches.
73
A human being loses an average of 40 to 100 strands of hair a day.
133
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
The average sperm cell swims at 8 inches per hour.
4
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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Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
Your fingernails grow faster in summer.
744