The blood in your body is made of many different cells, but the most important one is the Red Blood Cell. The average red blood cell lives for 120 days.
The cool Fact is that there are 2.5 TRILLION Red Blood Cells at any given time in your body. In order for your body to maintain this number 2.5 Million new Red Blood Cells have to be made by your Bone marrow every second. It is like producing the population of New York every 10 seconds
wow that is cool! Thank you :-)
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