Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
The average sperm cell swims at 8 inches per hour.
4
Tigers can see 6 times better at night than humans.
305
On average, there's 100 billion neurons in the human brain.
83
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k