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Human Response to Very-Low Frequency Electromagnetic Energy

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Alan H. Frey

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Early research documented measurable human physiological responses to very-low frequency electromagnetic fields from broadcasting stations.

Plain English Summary

Summary written for general audiences

This technical report by A.H. Frey examined how humans respond to very-low frequency (VLF) electromagnetic energy, focusing on exposures from broadcasting stations and measuring physiological effects at various field strengths. The research documented measurable human responses to VLF electromagnetic fields, contributing early evidence that extremely low frequency EMF can produce biological effects in people.

Why This Matters

Frey's research into VLF electromagnetic energy represents pioneering work in understanding how the human body responds to extremely low frequency fields. VLF frequencies (3-30 kHz) are used in military communications, navigation systems, and some broadcasting applications. What makes this study particularly significant is its focus on physiological responses rather than just theoretical exposure calculations. The research comes from an era when scientists were beginning to recognize that electromagnetic fields could produce measurable biological effects, challenging the prevailing assumption that non-ionizing radiation was inherently safe. Today, we're surrounded by VLF sources including power lines, electrical wiring, and various electronic devices that operate in similar frequency ranges, making Frey's early findings increasingly relevant to our daily EMF exposure profile.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
Alan H. Frey (n.d.). Human Response to Very-Low Frequency Electromagnetic Energy.
Show BibTeX
@article{human_response_to_very_low_frequency_electromagnetic_energy_g29,
  author = {Alan H. Frey},
  title = {Human Response to Very-Low Frequency Electromagnetic Energy},
  year = {n.d.},
  
  
}

Quick Questions About This Study

Very-low frequency (VLF) electromagnetic fields operate between 3-30 kHz and come from military communications, navigation systems, some broadcasting stations, and household electrical systems. We encounter similar frequencies daily from power lines and electrical wiring in our homes.
Frey's technical report examined physiological effects by measuring human responses at different field strengths near broadcasting stations. The research focused on documenting measurable biological changes rather than just theoretical exposure calculations.
Broadcasting station VLF research established early evidence that extremely low frequency fields can produce biological effects in humans. This foundational work helps us understand potential health implications of similar frequencies we encounter daily.
The study examined various field strengths from VLF broadcasting stations to determine physiological responses. Different field strength levels were tested to understand the relationship between exposure intensity and biological effects in humans.
VLF research like Frey's provides foundational evidence that extremely low frequency electromagnetic fields can produce measurable biological effects, supporting concerns about similar frequencies from modern electrical systems and wireless technologies we use daily.