(As part of National Blood Donor Month, we’ll be posting an assortment of items about blood donations on the blog in January, ranging from history to biography to facts and figures.)
You often hear about our need for blood donations at the South Texas Blood & Tissue Center.
But why do we need you to donate?
Easy: There is no way to produce blood except in the body. Despite all the advances in science in the last 100 years, no one has developed a foolproof substitute for blood.
Fortunately, your body is a veritable blood-making machine, churning out about 200 billion red cells, 10 billion white cells and 400 billion platelets a day. Most of those blood cells are produced by a biological marvel known as bone marrow.
All your body’s red blood cells and platelets are manufactured within the marrow of certain bones, and so are around 60-70 percent of your white cells.