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Impact of 900 MHz electromagnetic field exposure on main male reproductive hormone levels: a Rattus norvegicus model.

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Sepehrimanesh M, Saeb M, Nazifi S, Kazemipour N, Jelodar G, Saeb S. · 2014

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Four hours daily of 900 MHz radiation significantly reduced testosterone in male rats, suggesting cell phone frequencies may impact male fertility.

Plain English Summary

Summary written for general audiences

Researchers exposed male rats to 900 MHz radiofrequency radiation (the same frequency used by many cell phones) for 1, 2, or 4 hours daily over 30 days. Rats exposed for 4 hours daily showed significantly decreased testosterone levels and disrupted reproductive hormones compared to unexposed rats. This suggests that prolonged RF exposure may interfere with male fertility and reproductive function.

Why This Matters

This study adds to growing evidence that radiofrequency radiation can disrupt male reproductive health. The 900 MHz frequency tested here is identical to what many GSM cell phones emit, making these findings directly relevant to human exposure patterns. What's particularly concerning is that the longest exposure group (4 hours daily) showed the most pronounced hormonal disruptions, including decreased testosterone and altered levels of hormones that regulate sperm production. While we can't directly extrapolate from rats to humans, this research aligns with epidemiological studies showing declining sperm quality in populations with increasing wireless device use. The dose-response relationship observed here (longer exposure, greater effects) strengthens the biological plausibility that RF radiation affects male fertility. For men concerned about reproductive health, this study supports the wisdom of minimizing unnecessary RF exposure, particularly keeping phones away from the body for extended periods.

Exposure Information

Specific exposure levels were not quantified in this study. The study examined exposure from: 900 MHz Duration: 1, 2, and 4 h/day over a period of 30 days

Study Details

This work analyzes the effects of radiofrequency-electromagnetic field (RF-EMF) exposure on the reproductive system of male rats, assessed by measuring circulating levels of FSH, LH, inhibin B, activin B, prolactin, and testosterone.

Twenty adult male Sprague-Dawley rats (180 ± 10 g) were exposed to 900 MHz RF-EMF in four equal sepa...

At the end of the experiment, FSH and LH values of the long time exposure (LTE) group were significa...

Results suggest that reproductive hormone levels are disturbed as a result of RF-EMF exposure and it may possibly affect reproductive functions. However, testosterone and inhibin B concentrations as a fertility marker and spermatogenesis were decreased significantly.

Cite This Study
Sepehrimanesh M, Saeb M, Nazifi S, Kazemipour N, Jelodar G, Saeb S. (2014). Impact of 900 MHz electromagnetic field exposure on main male reproductive hormone levels: a Rattus norvegicus model. Int J Biometeorol. 2014 Sep;58(7):1657-63.
Show BibTeX
@article{m_2014_impact_of_900_mhz_2584,
  author = {Sepehrimanesh M and Saeb M and Nazifi S and Kazemipour N and Jelodar G and Saeb S.},
  title = {Impact of 900 MHz electromagnetic field exposure on main male reproductive hormone levels: a Rattus norvegicus model.},
  year = {2014},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/24357488/},
}

Quick Questions About This Study

Researchers exposed male rats to 900 MHz radiofrequency radiation (the same frequency used by many cell phones) for 1, 2, or 4 hours daily over 30 days. Rats exposed for 4 hours daily showed significantly decreased testosterone levels and disrupted reproductive hormones compared to unexposed rats. This suggests that prolonged RF exposure may interfere with male fertility and reproductive function.