It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
A human being loses an average of 40 to 100 strands of hair a day.
133
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
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
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
You can't tickle yourself.
29
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15