Insensitivity of cardiovascular function to low power cm-/mm-microwaves

Abstract

A previous study failed to disclose an effect of short (15 min) exposure to low level energy microwaves (3 microW/cm2) emitted by a commercially available automobile radar system (77 GHz) for adaptive cruise control (ACC) on cardiovascular function. The present study explored whether a 15 min exposure to higher level energy microwaves of frequencies varying from 5.8 to 110 GHz influences cardiovascular function. To this end heart rate, skin temperature (thermocouple), skin conductance (Ag/AgCl electrodes), systolic and diastolic blood pressure (automatic cuff) were recorded in 50 test persons before, during and after a 15 min exposure to a sequential pattern of microwaves varying from 5.8 to 110 GHz (59.7 microW/cm2). After an equilibration period of 30 min the first group of test persons and after additional 30 min the second group of test persons were exposed. The study has been performed in a strict double blind design. While significant effects on the measured parameters were observed depending on time ("calming" effect), no significant difference was observed between exposure and sham exposure to microwaves. In view of the small scatter of the data the present study rules out physiologically relevant effects of moderate energy (59.7 microW/cm2) microwaves varying from 5.8 to 110 GHz on cardiovascular function.

Comments on Martin Pall, “Millimeter (MM) wave and microwave frequency radiation produce deeply penetrating effects: the biology and the physics”, Rev Environ Health 2021;37:247–58.

“…Les rapports précédents de l'Agence (Afsset, 2009 ;Anses, 2013) n'ont pas spécifiquement évalué les données disponibles sur l'effet des radiofréquences sur le SNA. Cependant, l'analyse des effets sur le système cardiovasculaire, et en particulier la régulation de la fréquence cardiaque chez l'être humain (Parazzini et al 2007c, Kantz et al 2005, Atlasz et al 2006, Nam et al 2006, Barker et al 2007, Tamer, Gündüz, and Özyildirim 2009, Yilmaz and Yildiz 2010, Barutcu et al 2011, Bortkiewicz et al 2012, évoquait indirectement des effets sur le SNA. L'objet de ce chapitre est de reprendre l'analyse des effets des radiofréquences sur l'activité du SNA, en ne se cantonnant pas à la seule modulation de la variabilité de la fréquence cardiaque, chez des personnes se déclarant EHS et des témoins.…”

Inhibition of ferroptosis alleviates high-power microwave-induced myocardial injury

“…While these applications have brought convenience to our lives, the safety of this technology has raised more concerns as people are exposed to microwaves more frequently ( 4 ). Some investigations have found that certain intensities of microwave radiation, especially HPM, can cause some degree of damage to several organs of the body ( 2 , 5 , 6 ). In one study, rats were placed in a microwave irradiation environment at a frequency of 1,800 MHZ for 5 weeks.…”