Why Do We Have Different Blood Types?

Your blood type is older than humanity. A positive. O negative. AB. One letter and a symbol — one of the most medically important facts about your body, and almost no one asks why it exists. Not what it means for transfusions. Not which type is the universal donor. The real question is stranger: Why do humans have different blood types at all - and why doesn't everyone have the same one? This video follows the hidden history of the ABO blood group system. Karl Landsteiner. The discovery of blood typing. The 20-million-year-old origin of A and B blood. Why your blood type can connect you more closely to a gibbon than to another human. Why malaria helped shape the map of blood types around the world. Why type O blood protects against severe malaria. And why no blood type is universally better than another. Every blood type is partial armor against one threat and a vulnerability to another. A. B. AB. O. They are not random letters. They are a record of 20 million years of disease, migration, and survival, written in sugar molecules on the surface of your cells. Your blood type is the oldest autobiography you’ll never read. ________________________________ MORE VIDEOS LIKE THIS How Did Ancient Humans Navigate? 🔴    • How Did Ancient Humans Navigate?   What Color Is The Universe? 🔴    • What Color Is the Universe?   ________________________________ For business inquiries: [email protected] #BloodTypes #HumanEvolution #Malaria #ScienceExplained #Anthropology #Biology #Medicine