A human heart beats over 3 billion times during an average human lifespan.
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Facts About Humans!
RandomThis is a Non-Fiction book with over 25 facts about the Human Body. I've learnt these facts from a special guest (a scientist) that came to my school and I would like to share these facts with you!
48th Fact!
A human heart beats over 3 billion times during an average human lifespan.
