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Low-frequency pulsed electromagnetic field exposure can alter neuroprocessing in humans

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Authors not listed · 2009

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Pulsed 15 Hz electromagnetic fields dramatically alter cellular communication, causing bone cells to trigger 54-fold increases in blood vessel growth.

Plain English Summary

Summary written for general audiences

Researchers exposed bone cells and blood vessel cells to pulsed electromagnetic fields at 15 Hz frequency for 8 hours. They found that EMF exposure caused bone cells to release unknown chemical signals that dramatically increased blood vessel cell growth by 54 times. This suggests EMF can alter how cells communicate with each other, potentially affecting tissue healing and blood vessel formation.

Why This Matters

This study reveals something significant about how electromagnetic fields interact with our biology at the cellular level. The researchers found that 15 Hz pulsed EMF exposure doesn't just affect individual cells, it fundamentally changes how different cell types communicate with each other. When bone cells were exposed to these fields, they began secreting mystery chemical messengers that caused blood vessel cells to multiply at an extraordinary rate. What makes this particularly noteworthy is that this frequency range overlaps with extremely low frequency (ELF) EMF from power lines and electrical systems in our homes and workplaces. While the researchers used this exposure therapeutically for bone healing, the reality is that our cells are constantly bathed in similar frequencies from the electrical infrastructure around us. The fact that cells respond so dramatically to these signals raises important questions about unintended biological effects from chronic, low-level EMF exposure in our daily environment.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 15 Hz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 15 HzPower lines50/60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (2009). Low-frequency pulsed electromagnetic field exposure can alter neuroprocessing in humans.
Show BibTeX
@article{low_frequency_pulsed_electromagnetic_field_exposure_can_alter_neuroprocessing_in_humans_ce2171,
  author = {Unknown},
  title = {Low-frequency pulsed electromagnetic field exposure can alter neuroprocessing in humans},
  year = {2009},
  doi = {10.1002/bem.20459},
  
}
DOI: 10.1002/bem.20459PubMed: 19194859

Quick Questions About This Study

Yes, this study found that 8-hour exposure to 15 Hz pulsed electromagnetic fields at 1.8 mT strength caused bone cells to release chemical signals that dramatically affected neighboring blood vessel cells, increasing their growth rate by 54 times.
The researchers determined it wasn't VEGF-A, the most common blood vessel growth factor. They discovered the bone cells released some other unknown soluble chemical messenger after electromagnetic field exposure, but they haven't identified what this mystery substance is yet.
The study used 8-hour continuous exposure to 15 Hz pulsed electromagnetic fields. This duration was sufficient to cause bone cells to begin releasing chemical signals that dramatically increased blood vessel cell proliferation when tested in laboratory conditions.
No, the effect was one-directional. When blood vessel cells were exposed to the same 15 Hz electromagnetic fields, their secreted chemicals did not affect bone cell growth, showing that only bone cells responded by releasing the mystery growth-promoting substance.
Yes, 1.8 millitesla is quite strong compared to typical environmental EMF exposure. For comparison, this is roughly 36,000 times stronger than Earth's magnetic field and much higher than typical household electromagnetic field levels from appliances or power lines.