A human being loses an average of 40 to 100 strands of hair a day.
133
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
Enamel is hardest substance in the human body.
61
Your fingernails grow faster in summer.
744
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13