The health risks of each blood type

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How blood type is determined: Like eye color, blood type is passed on genetically from your parents. 

Heart disease: Research shows that O blood types have a lower risk of coronary heart disease. Experts aren’t sure why. But some believe it 

Group AB: The red blood cells have both A and B antigens, but the plasma doesn't contain anti-A or anti-B antibodies.

Group A: The surface of the red blood cells contains A antigen, and the plasma has anti-B antibody. Anti-B antibody 

ABO and the most common blood types: The ABO blood group system classifies blood types according to the different types of antigens in the red blood cells

Group B: The surface of the red blood cells contains B antigen, and the plasma has anti-A antibody. 

Memory: A small study showed that people with AB blood type are more likely to develop thinking and memory problems

Group O: The plasma contains both anti-A and anti-B antibodies, but the surface of the red blood cells doesn't contain any A or B antigens.

Rhesus factor: Some red blood cells have the Rh factor or antigen. If the red blood cells contain the Rh antigen, they're Rh positive. 

Testing for blood type: A blood test can determine an individual’s blood type. In a lab, the blood is mixed with three different substances to see how they react.

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