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Effects of 900 MHz radiofrequency on corticosterone, emotional memory and neuroinflammation in middle-aged rats

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Bouji M, Lecomte A, Hode Y, de Seze R, Villégier AS · 2012

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Middle-aged brains show increased inflammation and memory changes from cell phone radiation, revealing age-dependent vulnerabilities ignored by current safety standards.

Plain English Summary

Summary written for general audiences

French researchers exposed young and middle-aged rats to 15 minutes of cell phone radiation (900 MHz) at high levels to study brain and stress responses. They found that middle-aged rats showed increased brain inflammation and enhanced emotional memory, while young rats had elevated stress hormone levels. The study reveals that age affects how the brain responds to radiofrequency exposure, with different vulnerabilities at different life stages.

Why This Matters

This research highlights a critical gap in EMF safety standards: age-dependent vulnerability. The science demonstrates that middle-aged brains respond differently to radiofrequency exposure than young adult brains, showing increased neuroinflammation and altered memory processing. The 6 W/kg exposure level used here is three times higher than current safety limits, but the 15-minute duration mirrors typical phone call lengths. What this means for you is that current safety standards, based primarily on young adult models, may not adequately protect older populations. The finding that brief exposures can trigger measurable brain changes in middle-aged subjects adds to mounting evidence that our aging population may face unique risks from wireless technology that aren't reflected in current regulations.

Exposure Details

SAR
6 W/kg
Source/Device
900 MHz
Exposure Duration
15 min

Exposure Context

This study used 6 W/kg for SAR (device absorption):

Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.

Where This Falls on the Concern Scale

Study Exposure Level in ContextA logarithmic scale showing exposure levels relative to Building Biology concern thresholds and regulatory limits.Study Exposure Level in ContextThis study: 6 W/kgExtreme Concern0.1 W/kgFCC Limit1.6 W/kgEffects observed in the Extreme Concern range (Building Biology)FCC limit is 0x higher than this exposure level

Study Details

To assess the effects of 900 MHz radiofrequency on corticosterone, emotional memory and neuroinflammation in middle-aged rats

Since the transition from middle-age to senescence is highly dependent on environment and lifestyle,...

Our data indicated that, in contrast to previously published work, acute GSM exposure did not induce...

Altogether, our data showed an age dependency of reactivity to GSM exposure in neuro-immunity, stress and behavioral parameters. Reproducing these effects and studying their mechanisms may allow a better understanding of mobile phone EMF effects on neurobiological parameters

Cite This Study
Bouji M, Lecomte A, Hode Y, de Seze R, Villégier AS (2012). Effects of 900 MHz radiofrequency on corticosterone, emotional memory and neuroinflammation in middle-aged rats Exp Gerontol. 47(6):444-451, 2012.
Show BibTeX
@article{m_2012_effects_of_900_mhz_72,
  author = {Bouji M and Lecomte A and Hode Y and de Seze R and Villégier AS},
  title = {Effects of 900 MHz radiofrequency on corticosterone, emotional memory and neuroinflammation in middle-aged rats},
  year = {2012},
  
  url = {https://www.sciencedirect.com/science/article/abs/pii/S0531556512000708},
}

Quick Questions About This Study

French researchers exposed young and middle-aged rats to 15 minutes of cell phone radiation (900 MHz) at high levels to study brain and stress responses. They found that middle-aged rats showed increased brain inflammation and enhanced emotional memory, while young rats had elevated stress hormone levels. The study reveals that age affects how the brain responds to radiofrequency exposure, with different vulnerabilities at different life stages.