Human thigh bones are stronger than concrete!
63
A person infected with the SARS virus, has a 95-98% chance of recovery.
23
The average sperm cell swims at 8 inches per hour.
76
Clinophobia is the fear of beds!
30
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
Every time you sneeze some of your brain cells die.
113
In the average lifetime a person will breath in about 44 pounds of dust.
21