Your ears secrete more earwax when you are afraid than when you aren't.
229
The average sperm cell swims at 8 inches per hour.
76
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Redheads require more anesthesia to 'go under' than other hair colors do.
50
During menstruation, the sensitivity of a woman's middle finger is reduced.
47
Perspiration is odorless; it is the bacteria on the skin that creates an odor.
39
A person infected with the SARS virus, has a 95-98% chance of recovery.
23
One quarter of the human brain is used to control the eyes.
43