Yawns are more contagious among people with closer relationships.
163
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
The human brain is more active during sleep than during the day.
28
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
By weight, Bone is five times stronger than steel.
417
If the human eye was a digital camera, it would have 576 megapixels.
25