There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Our brains have a negativity bias and will remember bad memories more than good ones.
15
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
There are about 255 babies born worldwide every minute.
46
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82