Our brains have a negativity bias and will remember bad memories more than good ones.
15
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
Every human spent about half an hour as a single cell.
144
On average a woman has 4 sexual partners in her lifetime.
-143
Poor eyesight (myopia) is associated with higher IQ.
232
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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