Your blood type may be a window into your health. From heart disease and strokes to certain types of cancer, here's why blood ...

If you have type AB blood, for example, your body is programmed to produce A and B antigens on red blood cells. A person with type O blood doesn't produce any antigens. Blood is said to be ...

Most blood types fall into one of four blood type groups, according to whether they contain A or B antigens. For example, people with A antigens have type A blood, while those with B antigens have ...