According to a preprint in the National Library of Medicine, samples from human brains collected in 2024 contain 50% more plastic than samples collected in 2016, highlighting a concerning trend in plastic accumulation in human tissues.
Lead author Matthew Campen noted, 'Somehow these nanoplastics hijack their way through the body and get to the brain, crossing the blood-brain barrier,' indicating potential pathways through which plastics may affect brain health.
The study in the National Library of Medicine found that 0.48% of the human brain comprises micro and nano plastic particles, raising alarm over their growing presence in neural tissues.
Researchers indicated that while it's unclear what the health implications of this plastic accumulation may be, there is a notable connection between rising plastic levels in the brain and increasing Alzheimer's and dementia rates.
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