A man's beard grows fastest when he anticipates sex.
239
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
35
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Human hair and fingernails continue to grow after death.
7
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
32
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
One human hair can support 3 ounces.
191