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
Every human spent about half an hour as a single cell.
144
The human brain is more active during sleep than during the day.
28
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Obsessive nose picking is called Rhinotillexomania.
101