During menstruation, the sensitivity of a woman's middle finger is reduced.
47
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
A person infected with the SARS virus, has a 95-98% chance of recovery.
23
Fingernails grow nearly 4 times faster than toenails!
30
One quarter of the human brain is used to control the eyes.
43
A human being loses an average of 40 to 100 strands of hair a day.
133
Your ears secrete more earwax when you are afraid than when you aren't.
235

