Microplastics Found in Human Brain Tissue

A study published in Nature Medicine in 2025 confirmed the presence of microplastic particles in human brain tissue samples, with concentrations found to be 7-30 times higher in brains of dementia patients compared to controls. The research, conducted by teams at the University of New Mexico and Duke University, raised alarming questions about neurological health impacts of global plastic pollution. The findings prompted WHO to fast-track a global assessment of microplastic health risks.