PFAS Exposure Causes Postpartum Depression in Mice

Mouse mothers exposed to PFAS during pregnancy stopped caring for their pups properly and developed depression-like behavior. An antidepressant reversed the depression, confirming it was real.

10 PFAS, Real-World Levels

Researchers exposed mice to a mixture of 10 different PFAS chemicals at concentrations matching what's actually found in North Carolina drinking water. Exposure started before conception and continued until birth, according to a 2026 study in Toxicol Sci.

PFAS-exposed mothers showed diminished nurturing behavior and poor nest building. Their pups made fewer distress calls, suggesting the mother-baby bond was disrupted. The mothers also showed depressive-like behavior on standardized tests.

Fluoxetine Fixed It

When researchers gave the PFAS-exposed mothers fluoxetine (an antidepressant), the depression-like behavior reversed. That pharmacological validation means the PFAS wasn't just making them act differently. It was chemically inducing depression through the same pathways that SSRIs treat.

PFBS, one specific PFAS, independently caused impaired maternal care and reduced pup vocalizations.

What You Can Do

Filter your drinking water with a system rated for PFAS. Avoid nonstick cookware and stain-resistant products before and during pregnancy. And create a safer home with non-toxic baby products.

Also see glass food storage for safer alternatives.

Source: Rawtani H, Mellouk N, Jackson J, et al. (2026). Toxicol Sci.