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

Brain & Nervous System

Neurodegenerative disease and magnetic field exposure in UK electricity supply workers

No Effects Found

Sorahan T, Mohammed N · 2014

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Large UK study of electrical workers found no increased risk of Alzheimer's, Parkinson's, or motor neurone disease from occupational magnetic field exposure.

Plain English Summary

Summary written for general audiences

Researchers tracked 73,051 UK electrical workers for nearly 40 years to see if workplace magnetic field exposure increased their risk of developing Alzheimer's disease, motor neurone disease, or Parkinson's disease. The study found no statistically significant increase in any of these neurodegenerative diseases, even among workers with the highest magnetic field exposures. This suggests that occupational magnetic field exposure at the levels experienced by electrical workers does not elevate the risk of these brain diseases.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 60 Hz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

The study examined exposure from: 50/60 Hz

Study Details

To investigate whether risks of Alzheimer’s, motor neurone or Parkinson’s disease are related to occupational exposure to magnetic fields.

The mortality experienced by a cohort of 73051 employees of the former Central Electricity Generatin...

No statistically significant trends were shown for risks of any of these diseases to increase with e...

There is no convincing evidence that UK electricity generation and transmission workers have suffered elevated risks from neurodegenerative diseases as a consequence of exposure to magnetic fields.

Cite This Study
Sorahan T, Mohammed N (2014). Neurodegenerative disease and magnetic field exposure in UK electricity supply workers Occup Med (Lond) 2014; 64 (6): 454-460.
Show BibTeX
@article{t_2014_neurodegenerative_disease_and_magnetic_2831,
  author = {Sorahan T and Mohammed N},
  title = {Neurodegenerative disease and magnetic field exposure in UK electricity supply workers},
  year = {2014},
  
  url = {https://academic.oup.com/occmed/article/64/6/454/2750758?login=true},
}

Quick Questions About This Study

A 40-year study of 73,051 UK electrical workers found no increased risk of Alzheimer's disease from workplace magnetic field exposure. Even workers with the highest 50/60 Hz magnetic field exposures showed no statistically significant elevation in Alzheimer's risk compared to unexposed workers.
Research tracking UK electricity workers for nearly four decades found no convincing evidence that 50 Hz magnetic field exposure increases Parkinson's disease risk. The study showed no statistically significant trends linking workplace magnetic field exposure to Parkinson's development.
A comprehensive study of 73,051 UK electricity supply workers found no elevated risk of motor neurone disease from occupational magnetic field exposure. Workers experienced no statistically significant increase in this neurodegenerative condition despite decades of workplace electromagnetic field exposure.
Researchers followed 73,051 UK electrical workers for nearly 40 years (through 2014) to assess neurodegenerative disease risks from magnetic field exposure. This extended tracking period allowed scientists to detect long-term health effects from occupational electromagnetic field exposure.
Analysis of lifetime, recent, and distant magnetic field exposures in UK electrical workers revealed no statistically significant trends for increased neurodegenerative disease risk. The research found no convincing evidence linking cumulative occupational electromagnetic field exposure to brain diseases.