8,700 Studies Reviewed. 87.0% Found Biological Effects. The Evidence is Clear.
Shield Your Body

Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.

Reproductive Health

Lewis RC, Mínguez-Alarcón L, Meeker JD, Williams PL, Mezei G, Ford JB, Hauser R; EARTH Study Team

No Effects Found

Authors not listed · 2017

Share:

Fifteen minutes of high-power microwave exposure damaged male reproductive function in rats through oxidative stress mechanisms.

Plain English Summary

Summary written for general audiences

Researchers exposed male rats to high-power microwave radiation at 1.5GHz and 4.3GHz frequencies for 15 minutes and found significant damage to reproductive organs and sperm quality. Both single-frequency and combined exposures caused testicular tissue damage, reduced sperm viability, and disrupted hormone levels. The effects were similar whether rats were exposed to one frequency or both frequencies combined.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 1.5 GHz and 4.3 GHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 1.5 GHz and 4.3 GHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale
Cite This Study
Unknown (2017). Lewis RC, Mínguez-Alarcón L, Meeker JD, Williams PL, Mezei G, Ford JB, Hauser R; EARTH Study Team.
Show BibTeX
@article{lewis_rc_mnguez_alarcn_l_meeker_jd_williams_pl_mezei_g_ford_jb_hauser_r_earth_study_team_ce3767,
  author = {Unknown},
  title = {Lewis RC, Mínguez-Alarcón L, Meeker JD, Williams PL, Mezei G, Ford JB, Hauser R; EARTH Study Team},
  year = {2017},
  doi = {10.1016/j.reprotox.2024.108759},
  
}
DOI: 10.1016/j.reprotox.2024.108759PubMed: 39617305

Quick Questions About This Study

Yes, this study found that exposing male rats to either 1.5GHz or 4.3GHz microwaves for just 15 minutes caused testicular tissue damage, reduced sperm viability and motility, and decreased reproductive hormones including testosterone.
No significant difference was found between single-frequency and combined exposures. Rats exposed to both 1.5GHz and 4.3GHz together showed similar reproductive damage as those exposed to either frequency alone at the same total power level.
The reproductive effects began recovering by day 14 after exposure. However, significant damage to sperm quality, hormone levels, and testicular tissue was still evident 7 days post-exposure, indicating prolonged recovery periods.
Reproductive damage occurred at 10mW/cm² for single-frequency exposures and 5mW/cm² per frequency for combined exposures. These are high-power microwave levels significantly above typical consumer device emissions but relevant for occupational exposures.
The study identified two key mechanisms: increased oxidative stress (cellular damage from free radicals) and disrupted energy metabolism in testicular tissue. This included decreased antioxidant enzyme activity and reduced cellular energy production capacity.