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 ...

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.

Medically reviewed by David Hampton, MD Key Takeaways O- blood is the universal donor type because it can be used for anyone.AB+ blood can receive any type of blood, making it the universal recipient.

Blood types are a classification of blood based on the antigens present in red blood cells. In the United States, O-positive is the most common blood type, and AB-negative is the rarest. A blood ...

Knowing their blood type can help people better understand their health and be more informed about potential treatments. A person can find out their blood type with a blood test or other methods. The ...

Blood – everyone's got it. In fact, an adult who weighs between 150 and 180 pounds has around 1.2 to 1.5 gallons of blood in their body. This makes up approximately 10% of an adult’s weight. Blood ...

Doctors stumbled upon a type rarer than “golden blood”—and suspect more patients carry the bizarre genetic anomaly.