Brain samples contained 10 times more microplastics than other organs.
The study looked at brain samples collected in 2024, finding a 50% increase in microplastics compared to samples collected back in 2016.
Dr. Stephanie Widmer, a board-certified medical toxicologist and emergency medicine physician, who was not involved in the study, told ABC News that the study's findings are not yet cause for major concern. It is also not yet known what specific health risk this amount of microplastics inside a person's blood stream could potentially have, the study says.
Widmer said the study does not prove that microplastics cause diseases, nor does it explain how they enter the brain.
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