Millions of people in Europe live with disabling symptoms (headaches, chronic exhaustion, sleep disorders, palpitations) that they attribute to their growing exposure to electromagnetic waves. For years, these accounts were dismissed out of hand, reduced to anxiety or imagination. A growing number of researchers, associations and even national authorities now invite us to look at this differently.
A reality health authorities themselves acknowledge
In France, Anses (the national health safety agency) marked a turning point in 2018 by stating plainly that the suffering of people with electromagnetic hypersensitivity is real. That is not a minor detail: it is the official acknowledgement that these symptoms are neither feigned nor purely imaginary.
This recognition goes beyond France: the United Kingdom recognises electrosensitivity as an illness, and Sweden as a functional disability. In 2024, the International Commission on the Biological Effects of Electromagnetic Fields (ICBE-EMF), which brings together twenty-one independent experts, went further still, describing EHS as a "humanitarian crisis requiring an urgent response" and calling for its official recognition, together with guaranteed access to housing, healthcare, education and employment for those affected.
What is electromagnetic hypersensitivity?
A person with electromagnetic hypersensitivity has developed an intolerance syndrome to electromagnetic waves, with a range of dysfunctions and sometimes intense pain. Those affected describe a consistent set of symptoms:
- Fatigue, intense and persistent, hard to explain otherwise
- Neurological: headaches, dizziness, concentration and memory problems, mental confusion
- Skin-related: tingling, redness, burning sensations
- Other: sleep disorders, irritability, tinnitus, palpitations, muscle pain, digestive issues
For many, these symptoms intensify markedly near mobile masts, smart meters, Wi-Fi routers or electrical appliances, to the point of upending their professional and social life. Some report having to move away from any source of exposure to regain some quality of life.
In Belgium, the work of researcher Gunther Hanotiaux has shown how often people with electromagnetic hypersensitivity end up socially excluded: a lack of understanding from those around them, difficulties accessing housing or employment, and gradual isolation for want of recognition of their condition. This social dimension, too often overlooked, compounds the suffering already caused by the symptoms themselves.
How and why does it appear?
Electromagnetic hypersensitivity is thought to be triggered by excessive exposure to low- and high-frequency waves: mobile telephony, DECT phones, Wi-Fi, Bluetooth, connected watches, electrical cabling, and so on.
After a variable latency period (a few days, several months, sometimes several years), electromagnetic hypersensitivity can appear suddenly, sometimes severely, without the person having noticed any warning sign. Certain populations are thought to be more vulnerable: children, pregnant women and foetuses, older people or those already in poor health, a heightened precautionary principle also found in other areas of environmental health.
A few useful markers for understanding what those affected report:
- Sensitivity to electromagnetic fields varies considerably between individuals, and can change over time within the same person
- A brief or moderate exposure does not necessarily trigger noticeable symptoms
- An intense or repeated exposure is more often associated with a chronic, lasting effect
- Certain populations (children, pregnant women, people already in poor health) are thought to be more vulnerable
- Several biological mechanisms are under active investigation to explain these effects
On the biological side, several avenues are being actively researched: oxidative stress, the impact on cellular ionic flows, the sensitivity of melatonin and the nervous system, or genetic factors that might make certain people more susceptible to developing hypersensitivity. The work of researcher Magda Havas on the biological effects of electromagnetic fields is among the references regularly cited in this area. This still-emerging work seeks to objectively confirm what patients have long reported.
"There's no proof of a link between waves and symptoms": how to respond?
This is the most common objection, and it deserves a clear answer rather than a shortcut in either direction. Anses and the WHO acknowledge that the suffering of EHS sufferers is real, but state that no double-blind study has, to date, demonstrated a direct and reproducible causal link with exposure to electromagnetic fields. That is not the same as saying "the waves have nothing to do with it": it means formal scientific proof, in either direction, has not yet been established.
Professor Dominique Belpomme and his team, drawing on the follow-up of more than 2,000 patients, argue for the hypothesis of an identifiable neurological disorder, with associated biological markers (oxidative stress, inflammatory biomarkers, visible abnormalities on brain imaging). A functional MRI study (Heuser & Heuser, 2017) reports brain abnormalities in patients reporting electromagnetic hypersensitivity after prolonged exposure. The provocation studies used to try to disprove EHS have recognised limitations of their own: very short laboratory exposures, artificial conditions, small samples. The absence of proof under these controlled conditions does not mean an absence of effect in everyday life.
Why precaution makes sense
In the absence of total certainty, in either direction, the precautionary principle keeps its full relevance: reduce exposure to electromagnetic fields where possible, have your environment measured, identify the most problematic sources. This is a matter of common sense, not an admission of weakness, and it is also what reference frameworks such as the BioInitiative Report, the EUROPAEM guidelines or IGNIR recommend, proposing more cautious exposure thresholds than standard regulatory limits for sensitive individuals, children and pregnant women.
What to remember
Electromagnetic hypersensitivity deserves to be taken seriously: the suffering is acknowledged by health authorities themselves, several countries have chosen social or medical recognition without waiting for full scientific consensus, and serious biological avenues are actively being studied. While waiting for definitive answers, reducing exposure remains a reasonable step, accessible to everyone.
Sources
Official reports and positions
- Anses, Hypersensibilité électromagnétique, collective expert report (2018)
- ICBE-EMF, Electromagnetic Hypersensitivity is a Humanitarian Crisis, position statement (2024)
- French National Assembly, information report on electromagnetic hypersensitivity (2018-2019)
- BioInitiative Working Group, BioInitiative Report (2012)
- EUROPAEM, EUROPAEM EMF Guideline 2016
- IGNIR, International Guidelines on Non-Ionizing Radiation (2021)
Clinical and biological research
- Belpomme & Irigaray, Electrohypersensitivity as a newly identified and characterized neurologic pathological disorder, IJMS (2020)
- Belpomme et al., patient cohort follow-up study (2021)
- Heuser & Heuser, Functional brain MRI in patients complaining of electrohypersensitivity, Reviews on Environmental Health (2017)
- Thoradit et al., study on the biological effects of electromagnetic fields (2024)
- Stein & Udasin, review on idiopathic environmental intolerance attributed to electromagnetic fields (2020)
- Havas, work on the biological effects of electromagnetic fields (2025)
- Johansson, review on electromagnetic hypersensitivity (2015)
- De Luca et al., study on oxidative stress and electromagnetic hypersensitivity (2014)
Historical and social context
- Firstenberg, The Invisible Rainbow (2020)
- Hanotiaux, research on social exclusion linked to electromagnetic hypersensitivity in Belgium (2024)
- Hardell, work on electromagnetic fields and health (2017)