Adrenergic nerve plexuses of heart and adrenal and myocardial catecholamines of spontaneously hypertensive rats under the influence of electromagnetic irradiation in the millimeter range].
Belousova TE, Kargina-Terent'eva RA · 1999
View Original AbstractMillimeter wave radiation at 5G-relevant frequencies altered heart nerve networks and stress hormones in rats, challenging claims these frequencies are biologically inactive.
Plain English Summary
Russian researchers exposed hypertensive rats to millimeter wave radiation at frequencies used in medical therapy devices (42,194 MHz and 53,534 MHz). They found the radiation reduced nerve density in heart tissue and decreased stress hormone production in both the heart and adrenal glands. This suggests millimeter wave exposure can suppress the sympathetic nervous system that controls heart rate and blood pressure responses.
Why This Matters
This study reveals how millimeter wave radiation can directly impact the cardiovascular system's nerve networks and hormone production. The frequencies tested (42-53 GHz) fall within the range now being deployed for 5G networks, making these findings particularly relevant as this technology expands globally. What's striking is that the radiation suppressed the sympatho-adrenal system - the body's primary stress response mechanism that regulates heart function and blood pressure. While the researchers framed this as potentially therapeutic for hypertension, the broader implication is concerning: if millimeter waves can alter fundamental cardiovascular control systems in targeted medical applications, what might chronic low-level exposure from 5G infrastructure do to healthy individuals over time? The science demonstrates that these frequencies aren't biologically inert, contrary to industry claims that non-ionizing radiation only causes heating effects.
Exposure Information
Specific exposure levels were not quantified in this study. The study examined exposure from: 42,194 MHz and 53,534 MHz
Study Details
Condition of adrenergic cardiac and adrenal nervous plexuses of Kyoto-Wistar Rats (WKY) and spontaneously hypertensive rats (SHR) was examined by quantitative neurohistochemical methods before and after extremely high frequency field (EHF field) influence of "Bayur" microwave therapy apparatus in mode 1 (42,194 MHz frequency, 7.1 mm wavelength) and in mode 3 (53,534 MHz frequency, 5.6 mm wavelength).
Reduction of myocardial nervous plexus density and catecholamine luminescence intensity were detecte...
Show BibTeX
@article{te_1999_adrenergic_nerve_plexuses_of_1896,
author = {Belousova TE and Kargina-Terent'eva RA},
title = {Adrenergic nerve plexuses of heart and adrenal and myocardial catecholamines of spontaneously hypertensive rats under the influence of electromagnetic irradiation in the millimeter range].},
year = {1999},
url = {https://europepmc.org/article/med/10561846},
}