Measuring Sensivity to Electromagnetic Fields - HRV as an Indicator

Dr. Lebrecht von Klitzing was perhaps one of the first pioneers studying heart, brain and central nervous system (CNS) reactions to ELF/RF radiation:

Tuengler, A., & von Klitzing, L. (2013). Hypothesis on how to measure electromagnetic hypersensitivity. Electromagnetic Biology and Medicine, 32(3), 281–290. https://doi.org/10.3109/15368378.2012.712586

Their conclusion: "Simultaneous recordings of heart rate variability, microcirculation and electric skin potentials are used for classification of EHS."

The interesting point here is that this is an objective method, which reveals also people who react with their heart, but do NOT get any symptoms. EHS (Electrical Hyper-Sensitivity) can therefore be much larger phenomenon than earlier anticipated. The HRV-measurement method is known to many medical doctors and this enables a new way of screening sensitives. However, as von Klitzing and also William (Bill) Rea have pointed out, the testing needs to take place in a chemically and electromagnetically clean environment + there needs to be several hours extra time (flush-out period) for test-subjects to recover from travel/electrosmog before the actual testing begins.

 

Other researchers have continued heart rate variability (HRV) measurements:

Koppel, T., Vilcane, I., Carlberg, M., Tint, P., Priiman, R., Riisik, K., ... & Visnapuu, L. (2015). The effect of static magnetic field on heart rate variability-an experimental study. Agronomy Research, 13(3), 765-774.

(Exposing with 150 µT DC magnetic field, 2 minute long phases. When the (normal) earth magnetic field is about 50 µT, in non-exposure phases)

Koppel, T., Vilcane, I., & Ahonen, M. (2018). 50 Hz magnetic field affects heart rate variability – an experimental study. 2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med), 1–2. https://doi.org/10.23919/EMF-MED.2018.8526072

(Exposing with 4 µT AC magnetic field, 2 minutes long phases. I was also involved in this study.)

Misek, J., Belyaev, I., Jakusova, V., Tonhajzerova, I., Barabas, J., & Jakus, J. (2018). Heart rate variability affected by radiofrequency electromagnetic field in adolescent students. Bioelectromagnetics, 39(4), 277–288. https://doi.org/10.1002/bem.22115

What is interesting in this Misek et al. (2018) paper,  HRV-readings and reactions could be recorded, when the test subject was in laying in a horisontal position. Exposure was from a mobile phone, in call/listen-mode.

 

A WISH: Hopefully these HRV-measurements, perhaps with microcirculation and electric skin potential measurements, will r-e-p-l-a-c-e badly constructed provocation studies ála Rubin. Similar suggestion about better research methods has been provided Dr. Dariusz Leszczynski (to the WHO), who has wisely proposed sensitivity research based on proteomics.  I find it very counter-productive to do/finance provocation studies, since often those studies have A) sensitives in control-groups B) immediate symptom expectations after exposure C) poorly shielded test laboratories D) no flush-out periods possible.

I am curious to hear more comments about HRV-testing.