Tiny plastic particles lodge in mouse brains and block blood vessels, scientists discovered using real-time imaging that revealed how these microplastics travel through the body.
In a study published in Science Advances and reported in Nature, researchers used advanced fluorescence imaging to watch microplastics move through living mouse brains. The particles, smaller than 5 millimeters, were consumed by immune cells that later became trapped in the brain's blood vessels, creating traffic jam-like blockages.
