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Effects of Electromagnetic Radiation Exposure on Stress-Related Behaviors and Stress Hormones in Male Wistar Rats.

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Mahdavi SM, Sahraei H, Yaghmaei P, Tavakoli H. · 2014

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Exposure to extremely low frequency electromagnetic fields at 1 and 5 Hz produced different hormonal and behavioral effects in male Wistar rats.

Plain English Summary

Summary written for general audiences

Researchers studied the effects of extremely low frequency electromagnetic field (ELF-EMF) exposure at 1 and 5 Hz on behavioral, hormonal, and metabolic changes in male Wistar rats. Plasma ACTH concentration increased in both frequency groups, while noradrenaline concentration showed an overall reduction.

Why This Matters

The study measured behavioral, hormonal, and metabolic outcomes, including changes in plasma concentrations of two main stress hormones, noradrenaline and adrenocorticotropic hormone (ACTH). Body weight and food and water intake were not altered by ELF-EMF exposure. Plasma glucose levels moved in opposite directions depending on frequency: they increased in the group exposed to 5 Hz and decreased in the group exposed to 1 Hz. Rearing, sniffing, and locomotor activity increased over time in the group receiving the 5 Hz wave. The researchers noted that the effects of 1 and 5 Hz on hormonal, metabolic, and stress-like behaviors may be different.

Exposure Details

Magnetic Field
0.1 mT
Source/Device
1 and 5 Hz
Exposure Duration
21 days

Exposure Context

This study used 0.1 mT for magnetic fields:

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 ContextStudy Exposure Level in ContextThis study: 0.1 mTExtreme Concern - 5 mGFCC Limit - 2,000 mGEffects observed in the Extreme Concern range (Building Biology)FCC limit is 2 times higher than this level
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 5 Hz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 5 HzPower lines50/60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Study Details

In this study, short, medium, and long-term exposure to the extremely low frequency electromagnetic field (ELF-EMF) (1 and 5 Hz radiation) on behavioral, hormonal, and metabolic changes in male Wistar rats (250 g) were studied.

In addition, changes in plasma concentrations for two main stress hormones, noradrenaline and adren...

ELF-EMF exposure did not alter body weight, and food and water intake. Plasma glucose level was incr...

In conclusions, these data showed that the effects of 1 and 5 Hz on the hormonal, metabolic and stress-like behaviors may be different. Moreover, the influence of waves on stress system is depending on time of exposure.

Cite This Study
Mahdavi SM, Sahraei H, Yaghmaei P, Tavakoli H. (2014). Effects of Electromagnetic Radiation Exposure on Stress-Related Behaviors and Stress Hormones in Male Wistar Rats. Biomol Ther (Seoul). 22(6):570-576, 2014.
Show BibTeX
@article{sm_2014_effects_of_electromagnetic_radiation_277,
  author = {Mahdavi SM and Sahraei H and Yaghmaei P and Tavakoli H. },
  title = {Effects of Electromagnetic Radiation Exposure on Stress-Related Behaviors and Stress Hormones in Male Wistar Rats.},
  year = {2014},
  
  url = {https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4256039/},
}

Quick Questions About This Study

ELF-EMF exposure did not alter body weight, and food and water intake.
Plasma glucose level increased in the group exposed to 5 Hz and decreased in the group exposed to 1 Hz.
Plasma ACTH concentration increased in both frequency groups, while noradrenaline concentration showed an overall reduction.
Rearing, sniffing, and locomotor activity increased in the group receiving the 5 Hz wave over time.