By Nicolas Desjardins, PhD in Natural Medicine · DBA(c) · Master’s in Neuroscience (in progress), designer of the Q-Technology system. Nicolas Desjardins is not a medical doctor. October 2026.
Lire cet article en français : Électrosensibilité : tes symptômes sont réels
The short answer. Electromagnetic hypersensitivity (EHS), or electrosensitivity, refers to real symptoms that people attribute to electromagnetic fields. In 2018, ANSES, the French health safety agency, recognized this suffering and called for suitable care, while concluding that, in the current state of knowledge, no solid experimental evidence establishes a causal link with exposure. In blind studies, people with EHS detect fields no better than anyone else. If you live with these symptoms, your first appointment is with a doctor. We promise you nothing about them: we offer EMF hygiene as a habit, and a test that looks at how your body functions, not at your symptoms.
First: headaches, trouble concentrating, tingling or palpitations have many possible causes, which a doctor can look for. See one, and without delay if you notice a warning sign: a sudden or unusual headache, fever with a stiff neck, vision or speech problems, weakness or numbness on one side of the body, confusion, chest pain, fainting.
Your symptoms are real. That isn’t the question. DOCUMENTED
You may have been made to feel you were exaggerating. In its March 2018 opinion, ANSES writes that the complaints (pain, suffering) of people who describe themselves as electrohypersensitive reflect a lived reality, and that these people need to adapt their daily lives to cope. Among the most frequently reported symptoms, it lists headaches and sleep, concentration and memory problems; it also notes the psychosocial isolation some of them endure. It recommends suitable care, and training health and social-care professionals to receive them and listen to them.
On the cause, it concludes that no solid experimental evidence establishes a causal link between exposure to electromagnetic fields and the reported symptoms.
Two sentences are true at the same time: the suffering is real, the cause is not demonstrated. Anyone who sells you one without the other is telling you half the story.
What the blind studies found DOCUMENTED
The principle: a real field or a sham one, without the volunteers (and, in double-blind designs, the experimenter) knowing which is on. That is what separates the effect of the field from the effect of expectation, and it is the standard that brought down magnetic insoles.
- 2005. A systematic review gathered 31 experiments and 725 participants with EHS. 24 found no evidence of a biophysical hypersensitivity. Of the other 7, 2 could not be replicated by their own authors, 3 appear to be statistical artefacts, and 2 contradicted each other. The authors note that the symptoms can be severe and sometimes disabling (Rubin et al., 2005).
- 2010. The update covers 46 studies and 1,175 volunteers with EHS: no robust evidence that exposure triggers the symptoms. The studies did, however, support a role for the nocebo effect in acute symptoms (Rubin et al., 2010).
- 2024. Across 41 studies and 2,874 participants, no effect of radiofrequency exposure on the symptoms studied (headache, sleep disturbances, composite symptoms) could be distinguished from chance, and people with EHS were no better than others at perceiving whether the field was on. Limits named by the authors: short exposures, in the lab, mostly in young, healthy volunteers (Bosch-Capblanch et al., 2024).
Nocebo does not mean imaginary. The nocebo effect is when the expectation of harm triggers real symptoms. ANSES describes it as a normal response (a “normal psychophysiological phenomenon”, in its words) and notes that its occurrence does not rule out an unidentified organic condition. Your symptoms remain real; what was not identified as the trigger, under those conditions, is the field itself.
The US law that takes the health argument away from local governments DOCUMENTED
In the United States, section 704(a) of the Telecommunications Act of 1996 added a provision to the federal code (47 U.S.C. § 332(c)(7)(B)(iv)): no State or local government may regulate the placement, construction and modification of personal wireless service facilities on the basis of the environmental effects of radio frequency emissions, to the extent that such facilities comply with the FCC’s regulations concerning such emissions.
A US town keeps its say over zoning, but it cannot turn down an antenna that meets federal standards because residents are worried about their health. The health question can no longer ground a local decision: it falls under the exposure limits set by the FCC. This fact proves nothing about health, either way, and applies only in the United States.
EMF hygiene: a habit, not a medical solution
EMF hygiene means organizing your electrical environment with common sense: phone out of the bedroom or in airplane mode at night, chargers away from the head of the bed, and a wired headset for long calls.
These habits reduce your exposure, and none of the studies cited here shows that they change the symptoms. One safeguard: if avoiding waves starts cutting you off from your work or the people close to you, talk to your doctor. ANSES counts isolation among the suffering that calls for care.
What the circuit does, and what it doesn’t
A straight answer to a common expectation: the Q-Technology circuit does not pick up Wi-Fi, 5G or Bluetooth. It blocks, filters and removes nothing. It is a passive resonant circuit (a coil, a capacitor, a resistor), with no battery and no electrode.
- ESTABLISHED It captures the ambient electromagnetic energy in its resonance band, the energy given off by chargers, power supplies and screens. Capturing does not mean absorbing: your exposure stays the same, with or without the circuit.
- [TO CHARACTERIZE] It returns a coherent signature. No bench session has been run yet.
What we don’t touch: your symptoms, which we neither measure nor track, and the exposure in your home. The test replaces no medical appointment.
What we look at, before and while you wear the circuit, during the Test Posture Parfaite (fifteen minutes, with a certified tester, no equipment):
- the tilts of the pelvis and shoulders on three planes, in centimeters;
- neck rotation, scored out of 7 on each side;
- strength and stability tests, right and left, holding or giving way.
If it shows nothing, the test is refunded. And since we’re talking about blinding: we ran several tests blind, with a sham circuit. These are internal tests, not a published study.
What we observe OBSERVATION: while the circuit is worn, we observe a postural correction during the test: tilts decrease, neck rotation evens out, tests that gave way now hold. It is an observation about function, not about your symptoms.
Functional assessment, non-medical · Before/after protocol · Observations from internal tests · Individual results vary · Not a medical claim.
Our hypothesis HYPOTHESIS: the circuit removes nothing and blocks nothing. It gives the nervous system a coherent, stable reference. This is a hypothesis about the mechanism, and it may be wrong.
Support, not cure. While you wear the circuit, the effect is there. Take it off, and you’re back where you started, like glasses: you wear them, you see; you take them off, you don’t.
FAQ
Is electromagnetic hypersensitivity recognized?
In 2018, ANSES recognized the suffering of people with EHS and recommended suitable care. It also concluded that no solid evidence establishes a causal link with exposure.
Do electromagnetic waves cause my symptoms?
Blind studies have not been able to show it, with one limit: short exposures, in the lab. For your own case, that is something to look at with a doctor.
Does the circuit pick up Wi-Fi, 5G or Bluetooth?
No. Its resonance band is far from those signals.
Will the circuit change my symptoms?
We promise you nothing about them, and the test doesn’t measure them: it looks at function. For your symptoms, the right door is suitable medical care.
How can I check for myself?
Book a Test Posture Parfaite: fifteen minutes, €33, with a certified tester. If it shows nothing, it is refunded.
Your symptoms deserve a doctor. Your function can be tested in fifteen minutes: book your Test Posture Parfaite, refunded if it shows nothing.
Sources
- ANSES. Hypersensibilité électromagnétique ou intolérance environnementale idiopathique attribuée aux champs électromagnétiques [Electromagnetic hypersensitivity or idiopathic environmental intolerance attributed to electromagnetic fields]. Opinion of 13 March 2018 and collective expert report (request no. 2011-SA-0150). https://www.anses.fr/fr/system/files/AP2011SA0150Ra.pdf
- Rubin GJ, Das Munshi J, Wessely S. Electromagnetic hypersensitivity: a systematic review of provocation studies. Psychosom Med. 2005;67(2):224-232. https://doi.org/10.1097/01.psy.0000155664.13300.64
- Rubin GJ, Nieto-Hernandez R, Wessely S. Idiopathic environmental intolerance attributed to electromagnetic fields (formerly ‘electromagnetic hypersensitivity’): An updated systematic review of provocation studies. Bioelectromagnetics. 2010;31(1):1-11. https://doi.org/10.1002/bem.20536
- Bosch-Capblanch X, et al. The effects of radiofrequency electromagnetic fields exposure on human self-reported symptoms: A systematic review of human experimental studies. Environ Int. 2024;187:108612. https://doi.org/10.1016/j.envint.2024.108612
- 47 U.S.C. § 332(c)(7)(B)(iv), added by section 704(a) of the Telecommunications Act of 1996 (Pub. L. 104-104). https://www.law.cornell.edu/uscode/text/47/332
