A recent study from the University of Rhode Island suggests that exposure to micro- and nanoplastics could contribute to the development of Alzheimer’s disease. These tiny plastic particles, commonly found in water, food, and air, can enter the body and accumulate in organs, including the brain.Researchers tested mice carrying the APOE4 gene, a major risk factor for Alzheimer’s, and found that exposure to these plastics affected their cognitive function. The study noted that the effects varied by sex, reflecting patterns observed in human Alzheimer’s patients—men showed changes in motivation, while women experienced memory issues.
The findings highlight the potential role of environmental toxins, alongside lifestyle factors like diet and exercise, in Alzheimer’s development. The researchers emphasized the need for further investigation into how micro- and nanoplastics may impact brain health and contribute to cognitive decline.