Your ears secrete more earwax when you are afraid than when you aren't.
229
In the average lifetime a person will breath in about 44 pounds of dust.
21
A person will burn 7 percent more calories if they walk on hard dirt compared to pavement.
45
Redheads require up to 20% more anesthesia to be knocked out.
112
Every time you sneeze some of your brain cells die.
113
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Only 1% of bacteria cause disease in humans!
2