Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
The human sigh acts as a physiological reset button.
23
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22