The world's shortest man measures only 21.5 inches.
73
On average a woman has 4 sexual partners in her lifetime.
-143
The human body contains over a billion miles of DNA.
147
The human brain is more active during sleep than during the day.
28
Enamel is hardest substance in the human body.
61
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
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
A person can live without food for about a month, but only about a week without water.
156