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Provides a review abstract describing experimental endocrine effects, inconsistent human findings and limits of exposure extrapolation, and calling for rigorous long-term human research.

  • Research & federal duties: “ress and calcium ion imbalance. In contrast, human studies remain inconsistent, often hindered by methodological limitations and insu”
  • Proposed biological mechanisms: “nd reproductive function—largely mediated by oxidative stress and calcium ion imbalance. In contrast, human studies ”
  • Reproduction & pregnancy: “stress hormone levels, thyroid activity, and reproductive function—largely mediated by oxidative stress and calc”
  • Power lines, wiring & solar: “netic fields (ELF-EMFs), generated mainly by power infrastructure and household devices, have raised scientific interest”
  • Other concerns: “nterest due to their potential impact on the endocrine system. Animal research consistently shows effects on ”

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ORIGINAL COMMENT · UNEDITED TEXT
See attached file(s) A Narrative Review on the Influence of Electromagnetic Fields Below 100 kHz on the Endocrine System 2026 Abstract Background: Extremely low-frequency electromagnetic fields (ELF-EMFs), generated mainly by power infrastructure and household devices, have raised scientific interest due to their potential impact on the endocrine system. Animal research consistently shows effects on melatonin secretion, stress hormone levels, thyroid activity, and reproductive function—largely mediated by oxidative stress and calcium ion imbalance. In contrast, human studies remain inconsistent, often hindered by methodological limitations and insufficient exposure characterization. Objective: This review synthesizes experimental and epidemiological studies examining low-frequency electromagnetic field exposure (≤100 kHz) and its influence on hormonal regulation. Methods: A bibliometric analysis highlights focused interest on specific endocrine targets, particularly the pineal gland. Importantly, many experimental studies use field strengths above those found near high- voltage power lines, limiting direct applicability. Conclusions: While a definitive causal link has not been established, the widespread exposure to low-frequency electromagnetic fields justifies precautionary considerations. Several important research gaps remain, many of which are identified in this review. The topic of low-frequency electromagnetic field effects on the endocrine system requires more rigorous, long-term human studies with accurate exposure assessment. Keywords: electromagnetic field; endocrine system; hormones; cancer; EMF exposure

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Research & federal dutiesProposed biological mechanismsReproduction & pregnancyPower lines, wiring & solarOther concerns
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