Some body statistics

• The largest cell in the human body is the female egg and the smallest is the male sperm.
• It takes your food seven seconds to get from your mouth to your
  stomach.
• One human hair can support 3 kg (6 lb).
• The average man's penis is three times the length of his thumb.
• 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.
• Men who read this are probably still busy checking their thumbs.