In 24 hours in an adult body, the heart beats 103,689 times. Blood travels 168000000 miles.Respiration happens 23,040 times.438 cubic feet of air is inhaled. 3.25 pounds of food is eaten.4800 woords are spoken . 750 muscles are moved.Nails grow 0.00046 inch. Hair grows .01714 inch . And 7000000 brain cells are exercised!