1. Erythropoietin >   2. Red Blood Cell Production >    3. Red Blood Cells & Oxygen >

Like most cells in the body, red blood cells have a limited life span. As they
age or become damaged, they are continually replaced with fresh, new ones. Erythropoietin, a hormone made
in our kidneys and released into the bloodstream, is a key factor in regulating this process.

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