Fascinating biology facts
> The largest cell in the human body is the female egg and
> the smallest is the male sperm.
> It takes the food seven seconds to get from your mouth to
> your stomach.
> One human hair can support 3 kg (6 lb).
> The average man's erection is three times the length of his
> thumb..
> Human thigh bones 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