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Jovanović M, Ille M, Vuković A, Milovanovich ID, Mitić D, De Luka SR

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Authors not listed · 2026

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Static magnetic field exposure triggers opposite immune responses in young versus old animals, revealing critical age gaps in EMF safety standards.

Plain English Summary

Summary written for general audiences

Researchers exposed young and old rats to a strong 30 millitesla static magnetic field for 10 weeks and found dramatically different immune system responses based on age. Young rats showed signs of inflammation, while older rats experienced immune suppression and stress responses. This suggests magnetic field exposure affects the body differently as we age.

Why This Matters

This study reveals a troubling reality about magnetic field exposure that regulators have largely ignored: age matters profoundly in how our bodies respond to EMF. The 30 millitesla exposure used here is roughly 600 times stronger than Earth's magnetic field, comparable to what you'd experience very close to an MRI machine or certain industrial equipment. What's particularly concerning is how the older rats showed classic stress response patterns, including immune suppression that could leave them more vulnerable to infections and disease. The science demonstrates that our current one-size-fits-all approach to EMF safety standards fails to account for these age-dependent vulnerabilities. This research adds to growing evidence that children, pregnant women, and elderly populations may need different protection levels from electromagnetic exposures.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (2026). Jovanović M, Ille M, Vuković A, Milovanovich ID, Mitić D, De Luka SR.
Show BibTeX
@article{jovanovi_m_ille_m_vukovi_a_milovanovich_id_miti_d_de_luka_sr_ce4746,
  author = {Unknown},
  title = {Jovanović M, Ille M, Vuković A, Milovanovich ID, Mitić D, De Luka SR},
  year = {2026},
  doi = {10.1080/15368378.2026.2617536},
  
}
DOI: 10.1080/15368378.2026.2617536PubMed: 41550064

Quick Questions About This Study

Yes, 10 weeks of 30 mT static magnetic field exposure significantly reduced lymphocyte counts in both young and old rats, while also decreasing platelet counts specifically in older animals, indicating immune system disruption.
Yes, young rats showed increased inflammatory markers (higher NLR and PLR ratios) suggesting a pro-inflammatory response, while older rats experienced stress-related immune suppression instead of inflammation from the same magnetic field exposure.
The neutrophil-to-lymphocyte ratio (NLR) is a blood marker of systemic inflammation. Static magnetic field exposure increased NLR in both age groups, but this reflected different underlying processes - inflammation in young animals versus stress response in older ones.
Yes, 30 mT static magnetic field exposure enhanced cellularity (cell density) in both tibial bone marrow and spleen tissue in rats of all ages, but caused opposite changes in lymphocyte and red blood cell proportions depending on age.
Yes, the study suggests 30 mT static magnetic fields act as nonspecific physiological stressors in 36-month-old rats, potentially triggering General Adaptation Syndrome and leading to corticosterone-mediated immune suppression and cellular redistribution changes.