I am not sure this is not just a marker for already damaged arteries, similar to coronary artery calcium. See https://www.mayoclinic.org/tests-procedures/heart

I am not sure this is not just a marker for already damaged arteries, similar to coronary artery calcium. See https://www.mayoclinic.org/tests-procedures/heart-scan/about/pac-20384686 https://www.mayoclinic.org/tests-procedures/heart-scan/about... Basically, if you have high calcium in the walls of your arteries, you are at higher risk for heart attacks. But the increased calcium is just a sign of damage to the artery. We don't say that calcium causes heart disease. In the same way, already damaged arteries might be taking up more micro and nano plastics, and the presence of these in the arteries, is a sign of damage much like calcium, and not a cause. Note, that microplastics are ubiquitous in the environment, so likely everyone has been exposed to them, which supports the hypothesis that this may be a sign and the cause of the disease.