An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
It takes approximately 12 hours for food to entirely digest.
93
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
The human brain doesn't stop developing until about 25 years old.
102
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197