Scientific studies link blood types A, B, and AB with a higher risk of heart disease and stroke. This increased risk is associated with elevated clotting factors and inflammatory markers. Recognizing blood type as a risk factor can help tailor early prevention, screenings, and lifestyle interventions for better cardiovascular outcomes.Scientific studies link blood types A, B, and AB with a higher risk of heart disease and stroke. This increased risk is associated with elevated clotting factors and inflammatory markers. Recognizing blood type as a risk factor can help tailor early prevention, screenings, and lifestyle interventions for better cardiovascular outcomes.