I Heart Energy

The average human heart pumps 5 L/min5~\mbox{L/min} of blood through the human body at a pressure of 104 Pa10^4~\mbox{Pa}. For a person who lives 80 years, what is the total energy output of his heart in Joules?

Details and assumptions

  • Assume that the cardiac output is constant for any age.
  • There are 365.25 days in one year, and 24 hours in a day.
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