The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130
Smokers get ten times more wrinkles than non-smokers.
171
Dentists have recommended that a toothbrush be kept at least 6 feet away from a toilet to avoid airborne particles resulting from the flush.
104
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
On average, women have always lived longer than men.
195
It takes approximately 12 hours for food to entirely digest.
93
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
Although African-Americans make up only 13% of the U.S. population, they accounted for one half of the estimated new HIV/AIDS diagnoses in 2004.
70