The largest cell in the human body is the female egg and the smallest is the male sperm. A full bladder is roughly the size of a soft-ball. It takes the food seven seconds to get from your mouth to your stomach. One human hair can support 3 kg (6 lb). Human thighbones are stronger than concrete. The average man's penis is three times the length of his thumb. A woman's heart beats faster than a man's. If the average male never shaved, his beard would be 13 feet long when he died. Men with hairless chests are more likely to get cirrhosis of the liver than men with hair. There are about one trillion bacteria on each of your feet. Side by side, 2000 cells from the human body could cover about one square inch. Women blink twice as often as men The average person's skin weighs twice as much as the brain. When you are looking at someone you love, your pupils dilate. Your ears secrete more earwax when you are afraid than when you aren't. Your body uses 300 muscles to balance itself when you are standing still If saliva cannot dissolve something, you cannot taste it. The average woman is five inches shorter than the average man. Scroll down to the bottom please ........ Still looking at your thumb, aren't you.........?