The average sperm cell swims at 8 inches per hour.
4
Obsessive nose picking is called Rhinotillexomania.
101
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
The world's shortest man measures only 21.5 inches.
73
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Yawns are more contagious among people with closer relationships.
163