Medically reviewed by Amelia MacIntyre, DO One of the most important characteristics of blood is its type. Knowing your blood ...

The four major blood groups are based on whether or not you have two specific antigens — A and B. Doctors call this the ABO Blood Group System. The third kind of antigen is called the Rh factor.

People with one of the type A blood groups are more likely to have a stroke before the age of 60 compared with people with other blood types, research shows.

The letters A, B and O represent various forms of the ABO gene, which program our blood cells differently to form the different blood groups. If you have type AB blood, for example, your body is ...

There are 35 blood groups in the world, but the two most common groups are ABO group and Rh group. These groups contain the eight blood types that dominate over 90% of the world's population.

but blood types do not fit into racial categories. However, the prevalence of ABO blood groups among caucasian, African American, Asian, and Latino Americans in the U.S. does vary. Blood type is a ...

An example of codominance occurs in the human ABO blood group system. Many blood proteins contribute to blood type (Stratton, 1952), and the ABO protein system in particular defines which types of ...

Your blood type may be the secret to understanding how healthy your heart is.