There are 150 Billion red blood cells in one ounce of blood. There are 2.4 Trillion red blood cells in one pint of blood. The human body manufactures 17 million red blood cells per second. If stress precipitates a need the body can produce up to 7 times that amount.

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If you can measure it, you can manage it”
— Quote Source Dame Lillian Walker
How Often and at What Age Should You Get Your Blood Analyzed? Once to Twice a Year.
— Dr Andrew Huberman- Stanford Search Institute/Huberman Lab

I'm so glad I got started on the patches

I'm so glad I got started on the patches