When your face blushes, the lining of your stomach turns red, too.
154
During a typical human life span, the human heart will beat approximately 2.5 billion times.
21
"Fish odor syndrome" is a rare genetic disorder that causes people to smell like rotten fish.
5
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.
22
The average person can live for eleven days without water, assuming an average temperature of 60 degrees fahrenheit.
15
Household bleach is the recommended chemical to decontaminate people exposed to the anthrax virus, by the U.S. F.D.A.
16
Fingernails grow nearly 4 times faster than toenails!
30
By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9