Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
It takes approximately 12 hours for food to entirely digest.
93
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
A human being loses an average of 40 to 100 strands of hair a day.
133
If the human eye was a digital camera, it would have 576 megapixels.
25
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Obsessive nose picking is called Rhinotillexomania.
101