A person's blood type is determined by "the presence or absence of certain antigens – substances that can trigger an immune response if they are foreign to the body," according to American Red Cross.

Most people don’t spare a thought for their blood type unless they’re in need of a transfusion — but could yours hold secrets to your health? And is one better than the others? There are four main ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. This voice experience is generated by AI. Learn more. This ...

Knowing your blood type is crucial medical information, but unless you've given blood before you might not be sure what yours is. I realized this when I was asked for mine while filling out paperwork ...

Add Yahoo as a preferred source to see more of our stories on Google. There’s more history in your blood types than you think, and it didn’t begin with humans. Here’s what we know about them, ...