There are more bacteria in your mouth than there are people in the world.
60
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
The chemicals indole and skatole, which help to account for the particular smell of human feces, are used as ingredients in perfume!
-3
Every time you sneeze some of your brain cells die.
113
It takes about 20 seconds for a red blood cell to circle the whole body.
102
Fidgeting can burn about 350 calories a day.
201
The average sperm cell swims at 8 inches per hour.
76
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