Pulsed radio-frequency electromagnetic fields: dose-dependent effects on sleep, the sleep EEG and cognitive performance.
Regel SJ, Tinguely G, Schuderer J, Adam M, Kuster N, Landolt HP, Achermann P · 2007
View Original AbstractBrain activity changes proportionally with EMF intensity, proving wireless radiation affects the brain in measurable, dose-dependent ways.
Plain English Summary
Swiss researchers exposed 15 men to cell phone radiation at varying intensities before sleep. Stronger radiation caused measurable changes in brain waves during sleep and slowed reaction times. This study provides evidence that EMF exposure affects brain function proportionally to radiation intensity.
Why This Matters
This study matters because it demonstrates a dose-response relationship - a cornerstone of toxicology that strengthens the case for biological effects from EMF exposure. The fact that brain activity changed proportionally with radiation intensity suggests these aren't random findings but genuine biological responses. The exposure levels tested (0.2 to 5 W/kg SAR) span the range of typical cell phone use, making these results directly relevant to daily exposure. What's particularly significant is that these effects occurred after just 30 minutes of exposure and persisted through the night, affecting the brain's natural sleep processes. The science demonstrates that our brains respond measurably to the electromagnetic fields from wireless devices, and the response intensifies with stronger exposure.
Exposure Details
- SAR
- 0.2, 5 W/kg
- Exposure Duration
- 30 min
Where This Falls on the Concern Scale
Study Details
To establish a dose-response relationship between the strength of electromagnetic fields (EMF) and previously reported effects on the brain, we investigated the influence of EMF exposure by varying the signal intensity in three experimental sessions.
The head of 15 healthy male subjects was unilaterally exposed for 30 min prior to sleep to a pulse-m...
Sleep architecture was not affected by EMF exposure. Analysis of the sleep electroencephalogram (EEG...
In summary, this study reveals first indications of a dose-response relationship between EMF field intensity and its effects on brain physiology as demonstrated by changes in the sleep EEG and in cognitive performance.
Show BibTeX
@article{sj_2007_pulsed_radiofrequency_electromagnetic_fields_1291,
author = {Regel SJ and Tinguely G and Schuderer J and Adam M and Kuster N and Landolt HP and Achermann P},
title = {Pulsed radio-frequency electromagnetic fields: dose-dependent effects on sleep, the sleep EEG and cognitive performance. },
year = {2007},
url = {https://pubmed.ncbi.nlm.nih.gov/17716273/},
}