For years, headlines have warned that fluoride could harm brain development. But what happens when we zoom out—not for months, but for 60 years? ⏳

This episode explores a landmark PNAS study tracking cognitive performance from adolescence to age 80. The conclusion is striking: no measurable link between fluoride exposure and IQ or cognitive decline.

We unpack how earlier studies misled the conversation, why dosage matters, and how socioeconomic factors quietly shape intelligence outcomes.

This isn’t just about fluoride—it’s about how science gets interpreted, misinterpreted, and weaponized.

📚 Source: Municipal water fluoridation, adolescent IQ, and cognition across the life course: Evidence from the Wisconsin Longitudinal Study, Proc. Natl. Acad. Sci. U.S.A. 123 (16) e2536005123 (2026). https://doi.org/10.1073/pnas.2536005123

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