The human brain tends to contain more tiny plastic particles compared to human kidneys and the liver, new research has indicated.
Scientists have found that microplastic levels in human brains have significantly increased from 2016 to 2024.
During the trial, the team of researchers looked at the brains of 28 dead people in 2016 and 24 in 2024. In addition, they assessed samples of their liver and kidneys.
They identified that the brain samples had significantly higher concentrations of plastic particles compared to the liver and kidney samples.
Additionally, the brain samples in 2024 contained more tiny plastic particles than in 2016, the results have revealed.
The 12 of the participants with a dementia diagnosis had a higher concentration of micro- and nanoplastic particles in their brains compared to those without the condition, the study has shown.
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The authors said: “The findings identify an association but do not establish a causal link between plastic particles and health effects.
“Some variation in the brain samples could be due to geographic differences, as samples were retrieved from New Mexico and locations on the US east coast.”
Read the study in the journal Nature Medicine.
