The human body It takes your food seven seconds to get from your mouth to your stomach. [*]One human hair can support 3 kg (6.6 lb). [*]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.