A new study shows that microplastics are making their way into human brains — with potentially dangerous effects on people’s health and mental 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. The concentration of microplastics in analyzed brains rose by about 50 percent from 2016 to 2024. … Humans are getting microplastics through water as well — the tiny particles have been found in bottled water and in tap water.

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• Los Angeles Times: As global plastic production grows, so does the concentration of microplastics in our brains​