Microplastics are a big environmental issue. They’ve been found in oceans, drinking water, seafood, the air we breathe, and increasingly throughout the human body, from the placenta to the brain.
A new study by researchers in Italy, published in the European Heart Journal, adds another organ to that growing list: the heart’s own blood supply. But while the discovery of microplastics in coronary blood is concerning, the most intriguing finding may not be the plastics themselves. It is how they may be getting there.