Add Yahoo as a preferred source to see more of our stories on Google. Knowing your blood type is critical during emergency health situations. Knowing your blood type is crucial medical information, ...

Human blood already comes in a bewildering variety of types, but researchers have now identified a new one so rare that only three people on the planet are known to carry it. The finding exposes just ...

Your blood type isn’t just important for transfusions — it’s actually providing you with built-in protection against certain diseases while potentially making you more vulnerable to others. The same ...

In an emergency, knowing your blood type could save your life. While this may sound dramatic, it’s true, especially if you have a rare blood type such as AB-negative. If you’ve never given blood or ...

See more of our coverage in your search results. Make New York Post a Preferred Source Most people don’t spare a thought for their blood type unless they’re in need of a transfusion — but could yours ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. There’s more history in your blood types than you think, ...

Across life on Earth, blood comes in blue, green, purple, even clear. But why? And what makes your blood different from mine? This is the strange world of blood—what it does, why it varies, and why we ...