You can't tickle yourself.
29
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
The human eye blinks an average of 4,200,000 times a year.
233
The average sperm cell swims at 8 inches per hour.
4
One human hair can support 3 ounces.
191
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93