Study: 40Hz ELF-EMF Exposure Neuroprotective in Mice, With Possible Implications for Stroke Recovery

Researchers report that frequency-specific electromagnetic field exposure at 40Hz was neuroprotective across brain regions in mice, with redox changes detectable peripherally. Cortical activity patterns developed gradually following chronic treatment.

"In mice, chronic (4w), daily 40Hz ELF-EMF (3h) exposure was neuroprotective across brain regions, as reflected in glutathione oxidation state."

— Henry Hing Cheong Lee et al. (study authors)

"Enhanced EEG beta (13-30 Hz) power correlated with initial IsoP levels in mice and the degree of stroke recovery in humans."

— Henry Hing Cheong Lee et al. (study authors)

"The ELF-EMF device consisted of a pair of 56-turn Helmholtz coils (42 cm radius), capable of generating 1–100 Hz EMF fields at intensities of 0.3 to 10G produced by a BK Precision 4045B sine wave generator amplified by a dedicated amplifier."

— Henry Hing Cheong Lee et al. (study authors)

"Mice were exposed to 40 Hz ELF-EMF (10G) for 3 h daily over 4 weeks (except weekends) before tissue dissection."

— Henry Hing Cheong Lee et al. (study authors)

📄 Underlying Research

Frequency-specific electromagnetic modulation of brain redox state precedes cortical activity in stroke recovery

Lee HHC, Reznik Balter S, Hodgson NW, Weisinger B, Shohami E, Doniger GM, Parabucki A, Segal Y, Hensch TK (2026) iScience Journal Level 1ⓘ

🔗 DOI 📚 PubMed

Study: 40Hz ELF-EMF Exposure Neuroprotective in Mice, With Possible Implications for Stroke Recovery

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📄 Underlying Research

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