A new study shows that prenatal exposure to chlorpyrifos (CPF), a common insecticide, may cause lasting brain damage. Children exposed before birth had abnormal brain structure, weaker motor skills, and disrupted metabolism that continued into their teen years.

The risks were highest in children with more CPF in their umbilical cord blood. While the EPA banned the pesticide in household products in 2001, it is still widely used in agriculture on non-organic fruits, vegetables, and grains—putting farm workers and their families at risk.

Researchers say the findings show how vulnerable the developing brain is to pesticides. They are calling for stronger protections, especially in farming communities, and warn that other similar chemicals may carry the same dangers. Limiting exposure during pregnancy and early childhood is key.

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Medical Xpress, August 18, 2025