Tiny Matters
From cow’s milk to blood banks: The surprising evolution of blood transfusions
35:43
Before modern blood transfusions, doctors tried some odd alternatives, including cow's milk. In this episode, we trace the fascinating history of blood transfusions, from risky animal experiments and failed milk injections to the discovery of blood types and disease screening. You'll hear how blood transfusions became one of medicine's safest procedures, why researchers are still debating…