“...apheresis (spinning out blood components) can be even more helpful.”
Helpful to giver or receiver?
I give blood @ 4 times a year, but have never done apheresis
It’s the recipients of many transfusions who may need alpheresis, not the donor. The ferritin/iron build up from the donors blood accumulate in the recipient. It takes more than a few or several transfusions to be at risk of hemochromatosis.