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
Our brains have a negativity bias and will remember bad memories more than good ones.
15
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
All 13 minerals necessary for human life can be found in alcohol beverages.
282