• Question: How many blood cells does a person have in there body

    Asked by ro to Karen on 9 Nov 2016.
    • Photo: Karen

      Karen answered on 9 Nov 2016:


      I had to look that up! Apparently somewhere between 20 and 30 trillion blood cells at any one time. I do know that your red cells have a life span of 90 days and white cells much shorter. Blood cells are made in you bone marrow and released into you circulation once they are mature enough.

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