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 ...

Your blood type might seem like a minor detail in your medical history, but it carries significant implications for your health and medical care. From emergency transfusions to pregnancy planning, ...

On average, an adult has about 1.2 to 1.5 gallons – or 10 units – of blood in their body, according to the American Red Cross. This accounts for approximately 10% of a person's weight. Now that's a ...