Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
The world's shortest man measures only 21.5 inches.
73
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
It takes approximately 12 hours for food to entirely digest.
93
The human sigh acts as a physiological reset button.
23
Every human spent about half an hour as a single cell.
144