Microplastics may be quietly damaging your brain and fueling Alzheimer’s and Parkinson’s

Read the full story from the University of Technology Sydney. See also: Siu, A. C. W., Paudel, K. R., Singh, G., et al (2025). Do microplastics play a role in the pathogenesis of neurodegenerative diseases? Shared pathophysiological pathways for Alzheimer’s and Parkinson’s disease. Molecular and Cellular Biochemistry, 481(2), 669–694. https://doi.org/10.1007/s11010-025-05428-3

Tiny plastic particles may be quietly threatening brain health. New research suggests microplastics—now widely found in food, water, and even household dust—could trigger inflammation and damage in the brain through multiple biological pathways. Scientists estimate adults may consume about 250 grams of these particles each year, and some can accumulate in organs including the brain.