If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
21
Dieters who sleep more take off more fat that those who sleep less.
159
The aorta, the largest artery in the body, is almost the diameter of a garden hose.
37
An average adult produces about half a liter of flatulent gas per day, resulting in an average of about fourteen occurrences of flatulence a day.
8
You see your nose at all times, your brain just chooses to ignore it.
30
According to a 1950s survey, 75% of men ejaculate within two minutes of penetration.
109
Dating back to the 1600's, thermometers were filled with Brandy instead of mercury.
16