1)Did you know that …an adult has 206 bones but a child has 350?most of us have 24 ribs?the average human body contains around 5 litres of blood?the human heart pumps 5 litres of blood in one minute (and that's just while we're resting)
2)50,000 of the cells in your body will die and be replaced with :new cells, all while you have been reading this sentence! :
3)In one hour, your heart works hard enough to produce the equivalent energy to raise almost 1 ton of weight 1 yard off :the ground. :
4)In 1 square inch of skin there lies 4 yards of nerve fibers, 1300 nerve cells, 100 sweat glands, 3 million cells, and 3 yards of blood vessels. :
5)There are 45 miles of nerves in the skin of a human being.In a year, a person`s heart beats 40,000,000 times.
