It takes about 20 seconds for a red blood cell to circle the whole body.
102
A man's beard grows fastest when he anticipates sex.
239
The world's shortest man measures only 21.5 inches.
73
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
Every human spent about half an hour as a single cell.
144
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118