"Baby teeth work kind of like tree growth rings. They start to form in utero, beginning in the second trimester. As they develop, layer by layer, they incorporate trace amounts of metals they're exposed to in the womb and early life."
"Using MRI allows us to look at what those exposures are doing to the brain in terms of its structure, connections and how different areas of the brain communicate."
Baby teeth serve as a record of metal exposure during critical developmental periods. They form in utero and incorporate trace metals from the environment. A study analyzed teeth from 500 children in Mexico City, creating a timeline of neurotoxic metal exposure. Researchers linked these exposures to brain development impacts through MRI scans and behavior assessments. The study focused on nine common environmental metals, highlighting the importance of understanding early life exposure to toxic substances.
Read at www.npr.org
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