Microplastics Invade Human Brains

Microplastics have been detected accumulating within the human brain, with recent studies revealing higher concentrations in individuals who died in 2024 compared to those who passed away in 2016. Researchers examining brain samples dating back to 1997 observed a consistent trend of increasing microplastic levels over time, irrespective of the individual's age at death.

Emerging research suggests potential links between microplastic exposure and various diseases. Studies in 2025 indicated a connection to Alzheimer's disease, where mice exposed to polystyrene showed memory impairments. Additionally, individuals with dementia exhibited higher microplastic levels, although increased brain porosity in dementia patients is also noted as a factor.

Further investigations are exploring a correlation with heart disease, with one study finding that individuals with microplastics in a major artery faced a higher risk of cardiovascular events. The pervasive presence of microplastics in food and beverages, particularly those heated or highly processed, contributes to this growing public health concern.