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.

Add Yahoo as a preferred source to see more of our stories on Google. LAS VEGAS (KLAS) — During a nationwide severe blood shortage, the American Red Cross of Southern Nevada has shed some light on ...

WAUSAU, Wis. (WSAW) - The Wausau Community Blood Center says there is a critical need for Type O blood throughout the country. The American Red Cross says Type O-Negative blood is the most common ...

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? There are four main blood types: A, B, AB and O.

"People can’t change their blood type,” Qi says. “But we may be able to use this information to help determine a patient’s risk for heart disease and how aggressively to treat them.” Half of Americans ...

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? The short answer: No, ...