Many of you may wonder how blood type and certain diseases connect.
While nearly 90,000 participants have been examined for 20 years, the possible reasons have not been explored.
The researchers did not look into the mechanisms that cause blood type to affect heart disease risk, but evidence from other studies gives some clues.
Blood type A is linked to higher levels of low-density lipoprotein (LDL) cholesterol, the “bad” cholesterol that clogs up arteries.
Blood type AB is linked to inflammation, which can affect how blood vessels work.
And people with blood type O have higher levels of a compound that has a beneficial effect on blood flow and clotting.