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Structural and Ultrastructural Study of Rat Liver Influenced by Electromagnetic Radiation.

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Holovská K, Almášiová V, Cigánková V, Beňová K, Račeková E, Martončíková M. · 2015

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WiFi-frequency radiation caused liver inflammation and cellular damage in rats after just 3 weeks of daily exposure.

Plain English Summary

Summary written for general audiences

Researchers exposed rats to 2.45 GHz microwave radiation (the same frequency used by WiFi and microwave ovens) for 3 hours daily over 3 weeks at power levels of 2.8 mW/cm². They found liver damage including inflammation, blood vessel dilation, and cellular changes including fat accumulation and dying liver cells. This suggests that chronic exposure to common microwave frequencies may harm liver function.

Why This Matters

This study adds important evidence to our understanding of how radiofrequency radiation affects organs beyond the brain. The 2.45 GHz frequency tested is identical to what your WiFi router and microwave oven emit, making these findings directly relevant to daily exposures. While the power density of 2.8 mW/cm² is higher than typical WiFi exposure, it's within range of what you might experience from prolonged close contact with wireless devices. The liver changes observed - including inflammation, cellular damage, and fat accumulation - occurred after just 21 days of exposure. What makes this research particularly concerning is that the liver is your body's primary detoxification organ. When EMF exposure compromises liver function, it may reduce your body's ability to process other environmental toxins, creating a compound effect on your health.

Exposure Details

Power Density
2.8 µW/m²
Source/Device
2.45 GHz
Exposure Duration
3 h/d for 3 week

Exposure Context

This study used 2.8 µW/m² for radio frequency:

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: 2.8 µW/m²Extreme Concern1,000 uW/m2FCC Limit10M uW/m2Effects observed in the Slight Concern range (Building Biology)FCC limit is 3,571,429x higher than this exposure level

Study Details

The aim of this study was to examine the effects of EMR on Wistar rat liver

Mature rats were exposed to electromagnetic field of frequency 2.45 GHz and mean power density of 2....

Structure of hepatocytes was not altered and all described changes were classified as moderate. Elec...

Our observations demonstrate that EMR exposure produced adverse effects on rat liver.

Cite This Study
Holovská K, Almášiová V, Cigánková V, Beňová K, Račeková E, Martončíková M. (2015). Structural and Ultrastructural Study of Rat Liver Influenced by Electromagnetic Radiation. J Toxicol Environ Health A. 78(6):353-356, 2015.
Show BibTeX
@article{k_2015_structural_and_ultrastructural_study_1030,
  author = {Holovská K and Almášiová V and Cigánková V and Beňová K and Račeková E and Martončíková M.},
  title = {Structural and Ultrastructural Study of Rat Liver Influenced by Electromagnetic Radiation.},
  year = {2015},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/25734762/},
}

Quick Questions About This Study

Researchers exposed rats to 2.45 GHz microwave radiation (the same frequency used by WiFi and microwave ovens) for 3 hours daily over 3 weeks at power levels of 2.8 mW/cm². They found liver damage including inflammation, blood vessel dilation, and cellular changes including fat accumulation and dying liver cells. This suggests that chronic exposure to common microwave frequencies may harm liver function.