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Prenatal PFAS exposure linked to brain structure changes in 5-year-olds, per 2025 Lancet study.
A 2025 study in The Lancet Planetary Health finds that prenatal exposure to PFAS—common "forever chemicals" found in everyday products—correlates with measurable changes in children’s brain structure by age five.
Analyzing blood from 51 pregnant women and MRI scans of their children, researchers linked certain PFAS compounds to alterations in the corpus callosum, hypothalamus, and occipital lobe, with some effects opposing each other.
While the health impact of these changes remains unknown, PFAS are known to cross the placenta and blood-brain barrier, and previous research ties them to cancer and heart disease.
The findings underscore concerns about widespread exposure and the need for more research into long-term neurological effects.
La exposición prenatal a PFAS relacionada con cambios en la estructura cerebral en niños de 5 años, según el estudio 2025 Lancet.