There's 100 trillion good bacteria living in your body.
17
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The human brain uses approximately as much energy as a 10 watt light bulb.
120
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
If you hold farts in during the day, they'll just come out when you sleep.
16
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515