Pain occurs when sounds are above 130 db.
124
It takes about 20 seconds for a red blood cell to circle the whole body.
102
A person can live without food for about a month, but only about a week without water.
156
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Mushrooms are more closely related to humans than they are to plants.
47
The world's shortest man measures only 21.5 inches.
73
The human brain has the capacity to store everything that you experience.
4k
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24