By weight, Bone is five times stronger than steel.
417
The human brain is more active during sleep than during the day.
28
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Cats have a weak sense of taste. They have only 473 tastebuds, humans have 9,000.
307
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
All 13 minerals necessary for human life can be found in alcohol beverages.
282