3,138 Studies Reviewed. 77.4% Found Biological Effects. The Evidence is Clear.

The effect of mobile phone electromagnetic fields on the alpha rhythm of human electroencephalogram.

Bioeffects Seen

Croft RJ, Hamblin DL, Spong J, Wood AW, McKenzie RJ, Stough C. · 2008

View Original Abstract
Share:

Mobile phone radiation measurably alters brain wave patterns during normal use, proving direct neurological effects from everyday EMF exposure.

Plain English Summary

Summary written for general audiences

Researchers exposed 120 healthy volunteers to mobile phone electromagnetic fields for 30 minutes while monitoring their brain waves using EEG technology. They found that mobile phone radiation increased alpha brain wave activity (the relaxed, wakeful state waves) during exposure, with stronger effects on the side of the head closest to the phone. This confirms that mobile phone EMF can directly alter normal brain function in measurable ways.

Why This Matters

This study represents some of the strongest evidence that mobile phone radiation directly affects human brain activity. The researchers used rigorous methodology with 120 participants in a double-blind design, confirming what previous smaller studies had suggested. What makes this particularly significant is that these brain wave changes occurred at radiation levels typical of normal mobile phone use. The alpha rhythm alterations indicate that EMF exposure is modifying the electrical activity of your brain in real-time. While the health implications of these changes aren't fully understood, the reality is that your brain's normal functioning is being disrupted every time you hold a phone to your head. This isn't theoretical anymore - it's measurable neurological impact from everyday technology use.

Exposure Information

Specific exposure levels were not quantified in this study. The study examined exposure from: 8-12 Hz Duration: 30-min Active and a 30-min Sham Exposure 1 week apart

Study Details

The purpose of the present study was to test one of the strongest findings in the literature; that of increased "alpha" power in response to MP-type radiation.

Healthy participants (N = 120) were tested using a double-blind counterbalanced crossover design, wi...

Previous reports of an overall alpha power enhancement during the MP exposure were confirmed (relati...

Employing a strong methodology, the current findings support previous research that has reported an effect of MP exposure on EEG alpha power.

Cite This Study
Croft RJ, Hamblin DL, Spong J, Wood AW, McKenzie RJ, Stough C. (2008). The effect of mobile phone electromagnetic fields on the alpha rhythm of human electroencephalogram. Bioelectromagnetics.29(1):1-10,2008.
Show BibTeX
@article{rj_2008_the_effect_of_mobile_2002,
  author = {Croft RJ and Hamblin DL and Spong J and Wood AW and McKenzie RJ and Stough C.},
  title = {The effect of mobile phone electromagnetic fields on the alpha rhythm of human electroencephalogram.},
  year = {2008},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/17786925/},
}

Quick Questions About This Study

Researchers exposed 120 healthy volunteers to mobile phone electromagnetic fields for 30 minutes while monitoring their brain waves using EEG technology. They found that mobile phone radiation increased alpha brain wave activity (the relaxed, wakeful state waves) during exposure, with stronger effects on the side of the head closest to the phone. This confirms that mobile phone EMF can directly alter normal brain function in measurable ways.