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
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
It takes approximately 12 hours for food to entirely digest.
93
Pain occurs when sounds are above 130 db.
124
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
The human brain is more active during sleep than during the day.
28