There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Our brains have a negativity bias and will remember bad memories more than good ones.
15
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
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If the human eye was a digital camera, it would have 576 megapixels.
25
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Modern humans first appeared about 200,000 years ago, but record keeping didn't begin until about 6,000 years ago. That means about 97% of human history is lost.
21