Your stomach produces a new layer of mucus every two weeks so that it doesn't digest itself.
160
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Only 1 person in 2 billion will live to be 116.
49
Sitting straight upright in your chair is bad for your back. You should instead slouch at an angle of 135 degrees.
10
The right lung takes in more air than the left.
30
Your tongue is the only muscle in your body that is attached at only one end.
173
According to a 1950s survey, 75% of men ejaculate within two minutes of penetration.
109
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