The lense of the eye continues to grow throughout a person's life.
34
It is almost impossible to sneeze with your eyes open. It is a defense mechanism that has evolved to protect our eyes from bacteria and debris.
164
35,000 people in the U.S. will die from the flu annually.
6
Enamel is hardest substance in the human body.
61
Every hour one billion cells in the body must be replaced.
17
The brain can stay alive for 4 to 6 minutes without oxygen. After that cells begin die.
193
Chocolate, sex, and laughter are all important for a healthy brain.
37
A person infected with the SARS virus, has a 95-98% chance of recovery.
23