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Sleep & Circadian Rhythm

Exposure to radiofrequency electromagnetic fields and sleep quality: a prospective cohort study.

No Effects Found

Mohler E, Frei P, Fröhlich J, Braun-Fahrländer C, Röösli M; QUALIFEX-team. · 2012

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Environmental RF radiation from cell towers and WiFi networks doesn't appear to disrupt sleep quality in typical daily exposure scenarios.

Plain English Summary

Summary written for general audiences

Swiss researchers followed 955 adults for one year to see if cell phone use or other everyday radiofrequency (RF) radiation affected their sleep quality. They found no connection between RF exposure and sleep problems, even when they objectively measured both radiation levels in bedrooms and sleep patterns using wrist monitors. This suggests that typical environmental RF exposure may not be disrupting sleep as some people fear.

Study Details

The aim of this prospective cohort study was to investigate whether sleep quality is affected by mobile phone use or by other RF-EMF sources in the everyday environment.

We conducted a prospective cohort study with 955 study participants aged between 30 and 60 years. Sl...

In the longitudinal analyses neither operator-recorded nor self-reported mobile phone use was associ...

We did not find evidence for adverse effects on sleep quality from RF-EMF exposure in our everyday environment.

Cite This Study
Mohler E, Frei P, Fröhlich J, Braun-Fahrländer C, Röösli M; QUALIFEX-team. (2012). Exposure to radiofrequency electromagnetic fields and sleep quality: a prospective cohort study. PLoS One. 7(5):e37455, 2012. .
Show BibTeX
@article{e_2012_exposure_to_radiofrequency_electromagnetic_3253,
  author = {Mohler E and Frei P and Fröhlich J and Braun-Fahrländer C and Röösli M; QUALIFEX-team.},
  title = {Exposure to radiofrequency electromagnetic fields and sleep quality: a prospective cohort study.},
  year = {2012},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/22624036/},
}
PubMed: 22624036

Cited By (60 papers)

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Quick Questions About This Study

The 2012 Swiss QUALIFEX study followed 955 adults for one year and found no connection between radiofrequency radiation exposure and sleep problems. Researchers measured both bedroom radiation levels and sleep patterns objectively, concluding that typical environmental RF exposure doesn't disrupt sleep quality.
Swiss researchers used wrist monitors to objectively measure sleep patterns in 955 adults exposed to radiofrequency radiation. The study found no sleep disruptions even with precise measurement tools, suggesting that objective sleep monitoring can accurately assess whether RF exposure affects sleep behavior.
The QUALIFEX study analyzed actual operator-recorded mobile phone usage data from 955 adults over one year. Neither operator records nor self-reported phone use showed any association with sleep disturbances or daytime sleepiness, contradicting concerns about phone use affecting sleep.
Swiss researchers directly measured radiofrequency electromagnetic field levels in participants' bedrooms rather than estimating exposure. Even with precise environmental RF measurements, they found no effects on self-reported sleep quality among 955 adults followed for one year.
The Swiss QUALIFEX team followed 955 adults for a full year to assess long-term RF exposure effects on sleep. This longitudinal approach provides more reliable evidence than short-term studies, and results showed no adverse sleep effects from everyday radiofrequency exposure.