The average human heart beats 100,000 times each day.

All this expanding and contracting pushes around 2,000 gallons of blood through the human body! Over a 70-year lifetime, the average human heart will beat more than 2.5 billion times. If all our blood vessels were laid end-to-end, they would stretch for about 60,000 miles - circling the planet more than two times!
(source)