A study published in Nature Medicine revealed that micro- and nanoplastics levels in human brain and liver tissues have risen significantly from 2016 to 2024. The research indicated that brain samples had higher concentrations of these plastic particles compared to livers and kidneys. Despite these findings, experts caution that more research is needed to understand the implications for human health, as current evidence does not firmly establish the health effects associated with microplastics in the brain. Environmental policies must adapt to address this emerging challenge.
We hypothesize that most of these plastics are not from recent exposure, but are extremely old degradation products. [This] highlights the need for more comprehensive strategies encompassing environmental policy and human health.
As yet no strong evidence of any health effects [of nanoplastics in the brain]. The authors only [tested] 52 samples in total. There is not enough data to make firm conclusions.
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