Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
The average person will go on a date at least 100 times before they finally marry.
33
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
One human hair can support 3 ounces.
191
You can't tickle yourself.
29
Pain occurs when sounds are above 130 db.
123
The human eye blinks an average of 4,200,000 times a year.
233