#22: Down to the Marrow
Bone marrow transplants are extraordinary, often life-saving procedures that can make a huge amount of difference for people suffering from leukemia and other cancers, anemia, and a wide variety of other syndromes, disorders, and illnesses.

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But here’s something absolutely crazy about them that you may not have known: if you receive a bone marrow transplant, your blood type will change to match the donor’s blood type. It’s sort of amazing that the body can do that!