Pain occurs when sounds are above 130 db.
124
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
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
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
If the human eye was a digital camera, it would have 576 megapixels.
25