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.

Enzymes produced by gut bacteria can remove long sugar chains in type A and B blood, leading to improved compatibility with type O. When you purchase through links on our site, we may earn an ...

Most humans fall into one of four blood groups — A, B, AB or O. Ordinarily, your blood type makes very little difference in your daily life except if you need to have a blood transfusion. Other WRAL ...

Dr. Harry Bear answers: Do I Need a Blood Transfusion for Cancer Surgery? — -- Question: Will I need a blood transfusion and should I donate blood before breast cancer surgery? Answer: Blood ...

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 ...

The Red Cross is trying to encourage more Americans to donate blood, especially in the summer, which is usually a slower time. They're dramatizing the need for blood with missing letters - A, B, and O ...

It is possible for blood type to change, and in some cases, this can happen without a blood transfusion. When someone is born, their blood type is determined, so everyone should know what their blood ...

The short answer: No, there is no “best” blood type. But each of the four main categories — A, B, AB and O — have their own advantages and disadvantages. It can also make you less attractive to ...