Possible Biological Explanations

a. Vascular and clotting factors
Bl00d type influences levels of certain clotting and inflammatory proteins. These differences might slightly affect the risk of heart atta.ck, stroke, or bl00d-vessel damage over time.
b. Lipid metabolism
Some genetic variants linked to the ABO system appear related to cholesterol and other blood lipids – key factors in heart health and overall aging.
c. Immune response and disease resistance
