Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
Only humans shed emotional tears.
331
If your DNA was stretched out it would reach to the moon 6,000 times.
256
The human brain is more active during sleep than during the day.
28
It takes about 20 seconds for a red blood cell to circle the whole body.
102