(CNN) - Scientists said it is important for everyone to know their blood type in case of a life-threatening event that results in a need for a blood transfusion. Now, they have discovered a new group ...

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? There are four main blood types: A, B, AB and O.

Knowing your blood type is critical during emergency health situations. Knowing your blood type is crucial medical information, but unless you've given blood before you might not be sure what yours is ...

Add Yahoo as a preferred source to see more of our stories on Google. A person's blood type is determined by "the presence or absence of certain antigens – substances that can trigger an immune ...

ROCHESTER — Mayo Clinic is in high demand for type O- blood donations as it launches an incentive blood donation program: Driving in Donors. For those wanting to donate but do not know their blood ...

If you don't know your blood type scientists are urging that you find out in case of emergencies -like the need for a blood transfusion. Now, researchers have found a new group of blood types that you ...