The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
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Wearing tight pants can lead to impotence in men.
120
There is a disease called ichthyosis that turns the skin scaly like a fish.
90
You mostly breathe from only one nostril at a time!
75
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Fingernails grow nearly 4 times faster than toenails.
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