Not everyone on Earth has the same blood type. Researchers are still trying to figure out why there are so many, but these different blood types can have deadly downsides. The surface of our red ...

Blood types exist because red blood cells, which relay oxygen through the bloodstream, carry different proteins and sugars on ...

Related: What's the rarest blood type? Blood types exist because red blood cells, which relay oxygen through the bloodstream, carry different proteins and sugars on their surfaces. These are ...

One concept is that various blood types have different blood-clotting factors that influence the start of strokes. Previous study suggests that people with blood type A may be slightly more ...

Your blood type may give you some insight on which diseases you're more at risk of developing. Certain types, for instance, ...

Require immediate backup! Narrator: Your blood has different cells with different jobs. Some cells do repairs if you get a cut. Red blood cells deliver oxygen and take away rubbish. And your white ...