Tiny plastic particles can accumulate in brain blood vessels, creating blockages that may reduce blood flow and impair motor function, according to new research in mice.
Tom Perkins reports for The Guardian.
In short:
- Scientists used real-time imaging to track microplastics moving through mice brains, where they clogged small blood vessels like a “car crash.”
- Mice exposed to microplastics showed reduced movement and performed worse on memory tests, suggesting possible neurological harm.
- While human brains have larger vessels, researchers say further study is important to understand the health risks of microplastics in human blood.
Key quote:
“This revelation offers a lens through which to comprehend the toxicological implications of microplastics that invade the bloodstream.”
— Peking University researchers
Why this matters:
Microplastics have been found throughout the human body, including the brain. Their ability to block blood vessels raises concerns about links to neurodegenerative diseases like Parkinson’s. While research on their long-term impact is still in its early stages, the increasing presence of plastic pollution in food, water and even the air suggests exposure is nearly unavoidable. With plastic production expected to double by 2050, understanding the health consequences of these particles is becoming an urgent priority.
Related:
Massive new database on how plastic chemicals harm our health
