Electromagnetic pulses induce fluctuations in blood pressure in rats.
Li BF, Guo GZ, Ren DQ, Zhang RB. · 2007
View Original AbstractBrief electromagnetic pulse exposure caused blood pressure fluctuations lasting up to one month in rats.
Plain English Summary
Researchers exposed rats to electromagnetic pulses (intense bursts of electromagnetic energy) and measured their blood pressure for four weeks afterward. The study found that these pulses caused immediate spikes in blood pressure, followed by drops below normal levels that lasted up to a month. This suggests that even brief electromagnetic exposures can trigger lasting changes in cardiovascular function.
Why This Matters
This study reveals something concerning about electromagnetic pulse exposure: the cardiovascular effects aren't just immediate, they persist for weeks. What makes this particularly relevant is that while most EMF research focuses on chronic low-level exposure, this shows that even brief, intense electromagnetic events can disrupt normal blood pressure regulation for extended periods. The fact that blood pressure remained suppressed for up to a month after just 200 pulses suggests the cardiovascular system may be more vulnerable to electromagnetic disruption than previously understood. While the specific pulse exposures used here don't directly mirror everyday EMF sources, the underlying mechanism of electromagnetic interference with cardiovascular function deserves serious attention given our increasing exposure to various forms of EMF.
Exposure Details
- SAR
- 0.05 W/kg
- Electric Field
- 200000, 400000 V/m
Exposure Context
This study used 200000, 400000 V/m for electric fields:
- 666.7Kx above the Building Biology guideline of 0.3 V/m
Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.
Where This Falls on the Concern Scale
Study Details
To investigate the effects of exposure to electromagnetic pulses (EMP) on functional indices of the cardiovascular system in male Sprague-Dawley rats.
A tapered parallel plate Gigahertz Transverse Electromagnetic cell (GTEM cell) with a flared rectang...
The heart rates in sham- and EMP-exposed rats were not significantly changed. In the exposed rats, i...
Significant alterations in arterial blood pressure were observed in rats exposed to EMP exposure while heart rate was not altered.
Show BibTeX
@article{bf_2007_electromagnetic_pulses_induce_fluctuations_1148,
author = {Li BF and Guo GZ and Ren DQ and Zhang RB.},
title = {Electromagnetic pulses induce fluctuations in blood pressure in rats.},
year = {2007},
url = {https://pubmed.ncbi.nlm.nih.gov/17487681/},
}