Your stomach produces a new layer of mucus every two weeks so that it doesn't digest itself.
160
The right lung takes in more air than the left.
30
One out of 20 people have an extra rib.
66
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
Every hour one billion cells in the body must be replaced.
17