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Results of a long-term low-level microwave exposure of rats.

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Adang D, Remacle C, Vorst AV. · 2009

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Rats exposed to cell phone-frequency microwaves for 21 months showed compromised immune systems and nearly double the mortality rate of unexposed rats.

Plain English Summary

Summary written for general audiences

Belgian researchers exposed rats to 970-MHz microwave radiation (similar to cell phone frequencies) for 2 hours daily over 21 months and measured changes in blood cells and mortality. They found significant increases in white blood cells and changes in immune cell types, plus a striking finding: exposed rats had nearly twice the mortality rate of unexposed rats by the end of the study. This suggests that chronic low-level microwave exposure may compromise immune function and overall health over time.

Why This Matters

This long-term study provides compelling evidence that chronic microwave exposure at frequencies used by wireless devices can have serious biological consequences. The 970-MHz frequency is within the range of modern cell phones and wireless networks, making these findings directly relevant to human exposure scenarios. What makes this research particularly significant is the duration - 21 months represents a substantial portion of a rat's lifespan, allowing researchers to observe effects that shorter studies might miss. The nearly doubled mortality rate in exposed animals is especially concerning, as it suggests that the immune system changes observed throughout the study may have contributed to reduced survival. While we can't directly extrapolate animal studies to humans, this research adds to a growing body of evidence suggesting that our assumption of wireless safety may be premature, particularly for chronic, everyday exposures.

Exposure Information

Specific exposure levels were not quantified in this study. The study examined exposure from: 970-MHz Duration: 2 h a day, seven days a week

Study Details

This paper summarizes the results of experimental research on biological effects induced by electromagnetic exposure to low-level microwaves

We exposed four-month-old Wistar albino rats during 21 months to two different microwave frequencies...

After three and eight months of exposure, we found a statistically significant difference of about 2...

Cite This Study
Adang D, Remacle C, Vorst AV. (2009). Results of a long-term low-level microwave exposure of rats. IEEE Trans Microwave Theor Tech 57: 2488-2497, 2009.
Show BibTeX
@article{d_2009_results_of_a_longterm_1804,
  author = {Adang D and Remacle C and Vorst AV.},
  title = {Results of a long-term low-level microwave exposure of rats.},
  year = {2009},
  
  url = {https://www.researchgate.net/publication/224587203_Results_of_a_Long-Term_Low-Level_Microwave_Exposure_of_Rats},
}

Quick Questions About This Study

Belgian researchers exposed rats to 970-MHz microwave radiation (similar to cell phone frequencies) for 2 hours daily over 21 months and measured changes in blood cells and mortality. They found significant increases in white blood cells and changes in immune cell types, plus a striking finding: exposed rats had nearly twice the mortality rate of unexposed rats by the end of the study. This suggests that chronic low-level microwave exposure may compromise immune function and overall health over time.