A new study shows that microplastics are making their way into human brains — with potentially dangerous effects on people’s health andmental acuity.
A paper published Monday in Nature Medicine found that the tiny fragments of plastic are passing the blood-brain barrier and into human brains, and the amount of microplastics in the brain appears to be increasing over time. There were 50 percent more fragments in brains analyzed in 2024 than in 2016.
The scientists also examined the brains of 12 deceased patients diagnosed with dementia, and found that they had three to five times more microplastics than normal brains.
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