If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Poor eyesight (myopia) is associated with higher IQ.
232
On average a woman has 4 sexual partners in her lifetime.
-143
The human brain doesn't stop developing until about 25 years old.
102
You forget 90% of your dreams.
256
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93