Microplastics Accumulate in Human Brains, Linked to Ultra-Processed Food Consumption, Researchers Report Brain tissue from deceased donors contained microplastic concentrations seven to thirty times higher than those found in liver or kidney tissue, according to a new scientific perspective published in the journal BrainHealth. The burden increased by approximately 50% between 2016 and 2024, the same research indicated. Donors who had been diagnosed with dementia carried the highest levels. [6] How Microplastics Enter and Accumulate in the Brain Animal studies have shown that nanoscale plastic particles can cross the blood-brain barrier within two hours of ingestion, while larger particles do…

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