Only humans shed emotional tears.
331
The human body contains over a billion miles of DNA.
147
You can't tickle yourself.
29
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
Our Right Lungs takes more air than our left lung.
194
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118