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.

Do you know your blood type? Under certain circumstances, having one particular blood type could potentially increase your ...

Blood cancer affects the body's ability to fight against infection. For rapidly growing forms, it will need to be treated immediately, but slower growing forms are typically monitored, and treatment ...

There are different blood types: A, B, AB, and O, with each also being Rh-positive or Rh-negative. Knowing your blood type is ...

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