Circadian Rhythmicity of Antioxidant Markers in Rats Exposed to 1.8 GHz Radiofrequency Fields
Cao H, Qin F, Liu X, Wang J, Cao Y, Tong J, Zhao H · 2015
View Original AbstractCell phone radiation disrupted rats' natural antioxidant rhythms at exposure levels similar to typical phone use, with nighttime exposure causing the greatest harm.
Plain English Summary
Researchers exposed rats to cell phone radiation (1.8 GHz) for two hours daily over 32 days. The radiation disrupted natural daily rhythms of protective antioxidants in blood, with the largest decreases occurring during nighttime exposure, suggesting interference with the body's 24-hour protective cycles.
Why This Matters
This research reveals a concerning dimension of EMF exposure that extends beyond simple cellular damage to disruption of fundamental biological rhythms. The study used power density levels (0.2 mW/cm²) comparable to what you might experience from a cell phone during a call, yet found measurable disruption of circadian antioxidant production after just over a month of exposure. What makes this particularly significant is that our circadian rhythms govern everything from sleep quality to immune function to hormone production. The science demonstrates that EMF exposure doesn't just affect cells in isolation but can interfere with the sophisticated timing mechanisms that coordinate our entire physiology. The fact that nighttime exposures caused the most dramatic drops in protective antioxidants suggests your body may be most vulnerable to EMF effects when it should be recovering and repairing itself during sleep.
Exposure Details
- SAR
- 0.05653 W/kg
- Power Density
- 0.2017 µW/m²
- Source/Device
- 1.8 GHz
- Exposure Duration
- 3, 7, 11, 15, 19 and 23 h GMT, respectively, for 2 h/day for 32 consecutive days
Exposure Context
This study used 0.2017 µW/m² for radio frequency:
- 20.2Mx above the Building Biology guideline of 0.1 μW/m²
- 336.2Kx above the BioInitiative Report recommendation of 0.0006 μW/cm²
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 determine whether circadian rhythms of the plasma antioxidants (Mel, GSH-Px and SOD) are affected by RF, we performed a study on male Sprague Dawley rats exposed to the 1.8 GHz RF
All animals were divided into seven groups. The animals in six groups were exposed to 1.8 GHz RF (20...
Circadian rhythms in the synthesis of Mel and antioxidant enzymes, GSH-Px and SOD, were shifted in R...
The overall results indicate that there may be adverse effects of RF exposure on antioxidant function, in terms of both the daily antioxidative levels, as well as the circadian rhythmicity
Show BibTeX
@article{h_2015_circadian_rhythmicity_of_antioxidant_516,
author = {Cao H and Qin F and Liu X and Wang J and Cao Y and Tong J and Zhao H},
title = {Circadian Rhythmicity of Antioxidant Markers in Rats Exposed to 1.8 GHz Radiofrequency Fields},
year = {2015},
url = {https://www.mdpi.com/1660-4601/12/2/2071},
}