Human thighbones are stronger than concrete.
A woman's heart beats faster than a man's.
There are about one trillion bacteria on each of your feet.
Women blink twice as often as men.
The average person's skin weighs twice as much as the brain.
Your body uses 300 muscles to balance itself when you are standing still.
If saliva cannot dissolve something, you cannot taste it.
Women reading this will have finished by now.
Men are still busy checking their thumbs.