If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33
Chewing gum boosts your brain power.
285
The average office desk has 400 times more bacteria than a toilet.
22
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
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
The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130
Lack of water is the #1 trigger of daytime fatigue.
148
