The world's shortest man measures only 21.5 inches.
73
The human brain is more active during sleep than during the day.
28
Human hair and fingernails continue to grow after death.
7
Your heart will pump about 212 million liters in its lifetime.
26
A man's beard grows fastest when he anticipates sex.
239
Only humans shed emotional tears.
331
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
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