the adult human heart is about the size of our
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The adult human heart is about the size of a fist. The heart beats at an average rate of 80 times a minute. That's about 115,000 times in one day, or about 42 million times in a year. In a 70-year lifetime, an average human heart will beat more than 2.5 billion times.
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A human heart size is about the size on there wrist (muthi)
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