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

People with AB+ blood can receive any blood type since they have all antigens (A, B, and Rh). Why Compatibility Matters Blood transfusions require compatibility to prevent immune reactions.

A person with type O blood can donate to anyone, as long as the Rh factor is compatible. This means that people with O+ blood can donate to someone with A+, AB+, B+, or O+ blood, but not to people ...