If the human eye was a digital camera, it would have 576 megapixels.
25
The human body contains over a billion miles of DNA.
147
You can't tickle yourself.
29
A person will create enough saliva to fill two average size swimming pools during his lifetime.
191
The average person's skin weighs twice as much as their brain.
131
Only humans shed emotional tears.
331
Poor eyesight (myopia) is associated with higher IQ.
232