Brain Health

Study Links Long-Term Chlorpyrifos Exposure to Higher Parkinson’s Risk

Long-term exposure to the pesticide chlorpyrifos was associated with more than 2.5 times the risk of Parkinson’s disease in a UCLA study. Researchers compared 829 people with Parkinson’s and 824 without it, using California pesticide application records and address histories to estimate exposure. Laboratory experiments suggested that chlorpyrifos disrupts the removal of damaged proteins, potentially contributing to the loss of brain cells needed for movement. The findings connect an environmental exposure with a biological process relevant to brain aging and independence. However, the human study shows an association, not proof of causation, and the supplied article cuts off before providing full results. Avoiding unnecessary pesticide exposure is sensible, but this report does not establish a preventive treatment or a special screening schedule for previously exposed adults.