EHS is characterized by a variety of non-specific symptoms, which afflicted individuals attribute to exposure to EMF. The symptoms most commonly experienced include dermatological symptoms (redness, tingling, and burning sensations) as well as neurasthenic and vegetative symptoms (fatigue, tiredness, concentration difficulties, dizziness, nausea, heart palpitation, and digestive disturbances).
Source: World Health Organization (WHO)

Descriptions of EMF radiation health impacts are direct quotes from the studies.

A mechanistic understanding of human magnetoreception validates the phenomenon of electromagnetic hypersensitivity (EHS)

Denis L. Henshaw, Alasdair Philips - 2024 - tandfonline.com

"Interdisciplinary research has established that all forms of life can respond to MFs [magnetic fields]. Research shows that human cryptochromes exhibit magnetosensitivity. Most existing provocation studies have failed to confirm EHS as an environmental illness. We attribute this to a fundamental lack of understanding of the mechanisms and processes involved, which have resulted in the design of inappropriate and inadequate tests. We conclude that future research into EHS needs a quantum mechanistic approach on the basis of existing biological knowledge of the magnetosensitivity of living organisms."

Sensory Processing Sensitivity, and Not Gender, Drives Electromagnetic Hypersensitivity and Nature Connection

Reidulf G. Watten, Frode Volden, Hilde Visnes Trå - 2024 - liebertpub.com

"The present study provides the first empirical evidence that highly sensitive individuals are capable of perceiving electromagnetic radiation."

Hypersensitivity to man-made electromagnetic fields (EHS) correlates with immune responsivity to oxidative stress: a case report

Thawatchai Thoradit, Marthe Chabi, Blanche Aguida, Soria Baouz, Verene Stierle, Marootpong Pooam, Stephane Tousaints, Casimir D Akpovi, Margaret Ahmad - 2024 - pubmed.ncbi.nlm.nih.gov

"In sum, this study presents the case report of a patient with severe intolerance to EMF presenting with reduced levels of cellular anti-oxidants and significant increase in antibodies to cellular byproducts (LDLox) of oxidative stress. Since it has been demonstrated that man-made EMF sources (telecommunications, magnetic fields) induce increased levels of cellular oxidants, we hypothesize that EHS symptoms are consistent with a hypersensitive immune reaction to the byproducts of cellular oxidative stress."

Health Concerns of 5G and Setting Suitable Restrictions

Michael Bevington - 2024 - researchgate.net

"All six studies showed a consistent pattern. This comprised of (a) previously good health before the 5G RFR exposure, (b) severe adverse health symptoms during 5G RFR exposure, and (c) their significant reduction after moving to a location without 5G. No other known change in environmental pollution occurred except 5G RFR exposure."

"In all these six case studies, all 5G RFR exposures causing harm were far below current ICNIRP thermal restrictions, showing that the latter are not protective."

An Eight Year Old Boy Developed Severe Headache in A School Close to A Mast with 5G Base Stations

Lennart Hardell, Mona Nilsson - 2024 - medtextpublications.com

"In this case study we present an eight year boy who developed severe headache, but also some fatigue and dizziness at school after the implementation of 5G base stations close to the school. The RF radiation varied at the schoolyard between 83,332 and 267,536 μW/m2 and in the classroom including corridor between 2,560 and 76,590 μW/m2. Considerably lower levels were found in the home varying from 25 to 1,040 μW/m2. Protective clothes had a preventive effect on his symptoms. This case study is another example of the immediate need to halt the expansion of 5G and dismantle existing base stations."

"It can be assumed that more children at this school and other schools with 5G antennas in close proximity also suffer from symptoms caused by the increased RF-radiation from 5G. Children are generally more sensitive than adults to harmful environmental factors."

A Woman aged 82 years with Electromagnetic Hypersensitivity since Almost Four Decades Developed the Microwave Syndrome after Installation of 5G Base Stations in her Living Vicinity – Ethical Principles in Medicine are violated

Lennart Hardell, Mona Nilsson - 2024 - fortunejournals.com

"This article presents a woman aged 82 years with electromagnetic hypersensitivity (EHS) since almost four decades. After deployment of 5G base stations close to her living place she developed severe ill health including fatigue, dysesthesia, dizziness, balance disorder, and light sensitivity that all are included in the microwave syndrome. Also her 83 years old husband was affected, although to a minor extent."

"The levels of exposure from 5G in this study, as well as in our previous case studies, causing ill health within a short time period, are well below the ICNIRP limits. Therefore these case reports confirm that ICNIRP limits are not adequate for health protection from exposures from base stations."

Case Report: Both Parents and their Three Children Developed Symptoms of the Microwave Syndrome while on Holiday near a 5G Tower

Mona Nilsson, Lennart Hardell - 2023 - acmcasereport.org

"In this new case report we describe a previously healthy family of a man, a woman and their three children that rapidly developed symptoms of the microwave syndrome after arriving at a summer cottage located at 125 meters distance from a mobile phone tower with 5G antennas. The most severe symptoms for the adults were sleeping problems, headache, tiredness, and irregular heartbeat. The children got sleeping problems, diarrhea, pain in the stomach, skin rashes, headache, and emotional symptoms. All the symptoms disappeared and health was restored when the family returned to their own house at another place with no 5G base stations."

A 49-Year-Old Man Developed Severe Microwave Syndrome after Activation of 5G Base Station 20 Meters from his Apartment

Mona Nilsson, Lennart Hardell - 2023 - gavinpublishers.com

"In this new case report a 49-year old previously healthy man is described. A 5G base station was installed 20 meters from his apartment. He rather immediately developed a variety of symptoms that are part of the microwave syndrome. Most severe were headache, dysesthesia (abnormal sensation), loss of immediate memory, high and irregular pulse, chest squeeze, burning and lancinating skin. Very high RF radiation was measured in his apartment, however much lower than the limits recommended by the International Commission on Non-Ionizing Radiation Protection (ICNIRP). After moving to another apartment with low RF radiation the symptoms disappeared or decreased within a short time period but they reappear whenever he returns to his apartment close to the 5G antennas. This must be regarded as a provocation test on health and 5G radiation."

5G Radiofrequency Radiation Caused the Microwave Syndrome in a Family Living Close to the Base Stations

Mona Nilsson, Lennart Hardell - 2023 - fortunejournals.com

"In this article we examine a family of three persons living at distances of about 50 and 70 meters to two 5G base stations. The base stations are located on the top of two 6-floor buildings and the antennas are directed towards the family’s apartment on the 4th floor on the opposite side of the street."

"The family members reported symptoms included in the microwave syndrome to varying self-estimated degrees. The daughter had the most severe health issues, for example sleeping problems, headache, concentration and memory problems, skin disorders, irregular heartbeat, light sensitivity, anxiety and panic attacks."

Prevalence of Migraine Disease in Electrohypersensitive Patients

Frédéric Greco, Océane Garnier, Valérie Macioce, and Marie Christine Picot - 2023 - ncbi.nlm.nih.gov

"Our work seems to indicate that the prevalence of migraine disease in EHS individuals is much higher than that in the general population and constitutes the beginning of an answer to the questioning of the French national agency for food environmental and occupational health safety. It incites the continuation of research work and encourages practitioners confronted with electrohypersensitive patients to look for headaches and manage them in accordance with the recommendations of medical societies."

Case Report: A 52-Year Healthy Woman Developed Severe Microwave Syndrome Shortly After Installation of a 5G Base Station Close to Her Apartment

Lennart Hardell, Mona Nilsson - 2023 - acmcasereport.org

"In this case report we present a woman aged 52 years who developed health problems consistent with the microwave syndrome after installation of a 5G base station facing her apartment at 60 meters’ distance. These symptoms consisted of e.g., headache, dizziness, concentration difficulties, fatigue, arrhythmia, skin burning and nose bleeding corresponding to the microwave syndrome."

"This study confirms our previous publications on microwave syndrome caused by RF radiation emissions from 5G. Our three studies are to our knowledge among the first to have investigated health effects from 5G base stations. 5G substantially increases exposure to microwave radiation and in the present case, as well as in the previous case studies, the 5G deployment was followed by a rapid development of symptoms known as the microwave syndrome. Urgent attention is needed to the 5G health hazards by the responsible governmental agencies."

Cellular and molecular effects of non-ionizing electromagnetic fields

Henry Lai, B. Blake Levitt - 2023 - degruyter.com

"The concept that biological response to EMF is a ‘cellular stress response’ explains many observed effects of EMF, such as nonlinear dose- and time-dependency, increased and decreased risks of cancer and neurodegenerative diseases, enhanced nerve regeneration, and bone healing. These responses could be either detrimental or beneficial to health, depending on the duration and intensity of the exposure, as well as specific aspects of the living organism being exposed. A corollary to electromagnetic hypersensitivity syndrome (EHS) could be an inappropriate response of the hippocampus/limbic system to EMF, involving glucocorticoids on the hypothalamic-pituitary-adrenal axis."

"One pertinent question is: “What intensities of EMF trigger the cellular stress response?” Since cellular oxidative changes are the likely culprit of the effect, the response can occur at relatively low EMF intensities – many now common in the environment today."

Development of the Microwave Syndrome in Two Men Shortly after Installation of 5G on the Roof above their Office

Lennart Hardell, Mona Nilsson - 2023 - anncaserep.com

"After the deployment of 5G, both men developed symptoms typical for the microwave syndrome, e.g., headache, tinnitus, dizziness, balance disorder, concentration and attention deficiency, and fatigue."

"This case report may be regarded as a provocation study on health from 5G RFR. The clinical picture in both men was clearly related to the exposure, although the exposures were well below the guidelines recommended by ICNIRP that are claimed to protect against all health effects. We conclude that the guidelines for RFR exposure based only on tissue heating by ICNIRP are inadequate to protect human health and that 5G appears to provoke symptoms of microwave syndrome in previously healthy people."

Case Report: The Microwave Syndrome after Installation of 5G Emphasizes the Need for Protection from Radiofrequency Radiation

Lennart Hardell, Mona Nilsson - 2023 - gavinpublishers.com

"In this case, report two previously healthy persons, a man aged 63 years and a woman aged 62 years, developed  symptoms of the microwave syndrome after installation of a 5G base station for wireless communication on the roof above  their apartment."

"The rapidly emerging symptoms after the 5G deployment were typical for the microwave syndrome with e.g., neurological symptoms, tinnitus, fatigue, insomnia, emotional distress, skin disorders, and blood pressure variability. The symptoms were more pronounced in the woman."

"These now presented symptoms of the microwave syndrome were caused by non-thermal effects from RF radiation and highlight that the ICNIRP guidelines used in most countries including Sweden do not protect human health. Guidelines based on all biological negative effects from RF radiation are urgently needed, as well as monitoring human health, not the least due to rapidly increasing levels of exposure."

Why electrohypersensitivity and related symptoms are caused by non-ionizing man-made electromagnetic fields: An overview and medical assessment

Dominique Belpomme, Philippe Irigaray - 2022 - sciencedirect.com

"Contrary to present scientifically unfounded claims, we indubitably refute the hypothesis of a nocebo effect to explain the genesis of EHS and its presentation. We as well refute the erroneous concept that EHS could be reduced to a vague and unproven “functional impairment”. To the contrary, we show here there are objective pathophysiological changes and health effects induced by electromagnetic field (EMF) exposure in EHS patients and most of all in healthy subjects, meaning that excessive non-thermal anthropogenic EMFs are strongly noxious for health."

Electromagnetic hypersensitivity close to mobile phone base stations – a case study in Stockholm, Sweden

Lennart Hardell, Tarmo Koppel - 2022 - degruyter.com

"A previously healthy worker developed symptoms assigned to electromagnetic hypersensitivity (EHS) after moving to an office with exposure to high levels of anthropogenic electromagnetic fields (EMFs). These symptoms consisted of e.g. headache, arthralgia, tinnitus, dizziness, memory loss, fatique, insomnia, transitory cardiovascular abnormalities, and skin lesions."

"In conclusion, there are at least three types of electromagnetic fields present in the working room, which cause a long term exposure to the workers. Exposure to multiple source electromagnetic fields could be the cause for developing EHS related symptoms. However, the person had been exposed to ELF-EMF also at other locations in the building, so exposure to RF-EMF seems to be the most probable cause to her developed health problems."

Evidence for a health risk by RF on humans living around mobile phone base stations: From radiofrequency sickness to cancer

A. Balmori - 2022 - sciencedirect.com

"Overall results of this review show three types of effects by base station antennas on the health of people: radiofrequency sickness (RS), cancer (C) and changes in biochemical parameters (CBP). Considering all the studies reviewed globally (n = 38), 73.6% (28/38) showed effects: 73.9% (17/23) for radiofrequency sickness, 76.9% (10/13) for cancer and 75.0% (6/8) for changes in biochemical parameters."

Review of the scientific evidence on the individual sensitivity to electromagnetic fields (EHS)

Dariusz Leszczynski - 2021 - researchportal.helsinki.fi

"There is a need for a new direction in studying sensitivity to EMF. The basis for it is the notion of a commonly known phenomenon of individual sensitivity, where individuals’ responses to EMF depend on the genetic and epigenetic properties of the individual. It is proposed here that new studies, combining provocation approach, where volunteers are exposed to EMF, and high-throughput technologies of transcriptomics and proteomics are used to generate objective data, detecting molecular level biochemical responses of human body to EMF."

What is the radiation before 5G? A correlation study between measurements in situ and in real time and epidemiological indicators in Vallecas, Madrid

Isabel López, Nazario Félix, Marco Rivera, Adrián Alonso, Ceferino Maestú - 2021 - sciencedirect.com

"In conclusion, the data obtained shows that there is a relationship between the power density of radiation that a person receives at home every day and the presence of headaches, as well as the presence of sleep disorders. People who receive higher doses of radiation sleep less hours and have nightmares at night. In addition, these people suffer from headaches with greater intensity and are more prone to dizziness."

An Assessment of Illness in U.S. Government Employees and Their Families at Overseas Embassies

National Academies of Sciences, Engineering, and Medicine; Division on Engineering and Physical Sciences; Health and Medicine Division; Standing Committee to Advise the Department of State on Unexplained Health Effects on U.S. Government Employees and Their Families at Overseas Embassies; Editors: Julie A. Pavlin and David A. Relman - 2020 - nap.nationalacademies.org

"The committee found the unusual presentation of acute, directional or location-specific early phase signs, symptoms and observations reported by DOS employees to be consistent with the effects of directed, pulsed radio frequency (RF) energy. Many of the chronic, nonspecific symptoms are also consistent with known RF effects, such as dizziness, headache, fatigue, nausea, anxiety, cognitive deficits, and memory loss. Patient clinical heterogeneity could be due to variability of exposure dosage conditions, differences in interpretation of non-physiological vestibular stimuli, and anatomical differences that could influence individual exposure and/or response."

Electromagnetic hypersensitivity (EHS, microwave syndrome) - Review of mechanisms

Yael Stein, Iris G Udasin - 2020 - pubmed.ncbi.nlm.nih.gov

"It is concluded that the mechanisms underlying the symptoms of EHS are biologically plausible and that many organic physiologic responses occur following EMF exposure. Patients can have neurologic, neuro-hormonal and neuro-psychiatric symptoms following exposure to EMF as a consequence of neural damage and over-sensitized neural responses. More relevant diagnostic tests for EHS should be developed. Exposure limits should be lowered to safeguard against biologic effects of EMF. Spread of local and global wireless networks should be decreased, and safer wired networks should be used instead of wireless, to protect susceptible members of the public. Public places should be made accessible for electrohypersensitive individuals."

Electrohypersensitivity as a Newly Identified and Characterized Neurologic Pathological Disorder: How to Diagnose, Treat, and Prevent It

Dominique Belpomme, Philippe Irigaray - 2020 - mdpi.com

"Altogether, these data strongly suggest that EHS is a neurologic pathological disorder which can be diagnosed, treated, and prevented. Because EHS is becoming a new insidious worldwide plague involving millions of people, we ask the World Health Organization (WHO) to include EHS as a neurologic disorder in the international classification of diseases."

Trigeminal neurons detect cellphone radiation: Thermal or nonthermal is not the question

Andrew A. Marino, Paul Y. Kim, Clifton Frilot II - 2016 - tandfonline.com

"Trigeminal neurons were capable of detecting temperature changes far below skin temperature increases caused by cellphone radiation. Simulated cellphone radiation affected brain electrical activity associated with nonlinear cognitive processing of radiation-induced thermal afferent signals. Radiation standards for cellphones based on a thermal/nonthermal binary distinction do not prevent neurophysiological consequences of cellphone radiation."

EUROPAEM EMF Guideline 2016 for the prevention, diagnosis and treatment of EMF-related health problems and illnesses

Igor Belyaev, Amy Dean, Horst Eger, Gerhard Hubmann, Reinhold Jandrisovits, Markus Kern, Michael Kundi, Hanns Moshammer, Piero Lercher, Kurt Müller, Gerd Oberfeld, Peter Ohnsorge, Peter Pelzmann, Claus Scheingraber and Roby Thill - 2016 - degruyter.com

"Studies, empirical observations, and patient reports clearly indicate interactions between EMF exposure and health problems. Individual susceptibility and environmental factors are frequently neglected. New wireless technologies and applications have been introduced without any certainty about their health effects, raising new challenges for medicine and society."

"This EMF Guideline gives an overview of the current knowledge regarding EMF-related health risks and provides recommendations for the diagnosis, treatment and accessibility measures of EHS to improve and restore individual health outcomes as well as for the development of strategies for prevention."

The microwave syndrome or electro-hypersensitivity: historical background

David O. Carpenter - 2015 - degruyter.com

"There is increasing evidence that the “microwave syndrome” or “electro-hypersensitivity” (EHS) is a real disease that is caused by exposure to EMFs, especially those in the microwave range. The reported incidence of the syndrome is increasing along with increasing exposure to EMFs from electricity, WiFi, mobile phones and towers, smart meters and many other wireless devices. Why some individuals are more sensitive is unclear. While most individuals who report having EHS do not have a specific history of an acute exposure, excessive exposure to EMFs, even for a brief period of time, can induce the syndrome."

Tinnitus and cell phones: the role of electromagnetic radiofrequency radiation

Luisa Nascimento Medeiros, Tanit Ganz Sanchez - 2015 - pubmed.ncbi.nlm.nih.gov

"This study collected evidence for the association between exposure to EMRFR and tinnitus in some patients, particularly those suffering from electromagnetic hypersensitivity. While it is not fully confirmed, the authors consider it appropriate to direct more attention to cell phone use in the diagnostic investigation of patients with hearing disorders, especially tinnitus."

Electromagnetic hypersensitivity – an increasing challenge to the medical profession

Lena Hedendahl, Michael Carlberg, Lennart Hardell - 2015 - pubmed.ncbi.nlm.nih.gov

"It seems necessary to give an International Classification of Diseases to EHS to get it accepted as EMF-related health problems. The increasing exposure to RF-EMF in schools is of great concern and needs better attention. Longer-term health effects are unknown. Parents, teachers, and school boards have the responsibility to protect children from unnecessary exposure."

Mobile phone use and health symptoms in children

Chang-Ta Chiu, Ya-Hui Chang, Chu-Chieh Chen, Ming-Chung Ko, Chung-Yi Li - 2015 - sciencedirect.com

"We noted that the use of MPs by children was significantly and positively associated with headaches/migraines and skin itches by an elevated risk of 42% and 84%, respectively. A wide range of subjective symptoms has been attributed to exposure to various sources of RF-EMF both at home and at work. Some individuals reported that they suffered a variety of complaints, including headaches and migraines, fatigue, skin itches, and sensations of warmth. Our study is consistent with findings in some previous studies."

Could Myelin Damage From Radiofrequency Electromagnetic Field Exposure Help Explain the Functional Impairment Electrohypersensitivity? A Review of the Evidence

Mary Redmayne, Olle Johansson - 2014 - tandfonline.com

"Overall, evidence from in vivo and in vitro and epidemiological studies suggests an association between RF-EMF exposure and either myelin deterioration or a direct impact on neuronal conduction, which may account for many electrohypersensitivity symptoms. The most vulnerable are likely to be those in utero through to at least mid-teen years, as well as ill and elderly individuals."

Radiation from wireless technology affects the blood, the heart, and the autonomic nervous system

Magda Havas - 2013 - researchgate.net

"In this article, the relationship between electrosmog exposure and electrohypersensitivity (EHS), with a focus on the cardiovascular system, is presented, based on provocation studies and on reports of ill health among those living near cell phone base stations or exposed to WiFi in schools."

"Provocation studies presented in this article demonstrate that the response to electrosmog is physiologic and not psychosomatic."

Electromagnetic Hypersensitivity: Evidence for a Novel Neurological Syndrome

David E. McCarty, Simona Carrubba, Andrew L. Chesson Jr., Clifton Frilot II, Eduardo Gonzalez-Toledo, Andrew A. Marino - 2011 - tandfonline.com

"In a double-blinded EMF provocation procedure specifically designed to minimize unintentional sensory cues, the subject developed temporal pain, headache, muscle twitching, and skipped heartbeats within 100 s after initiation of EMF exposure (p < .05)."

Provocation study using heart rate variability shows microwave radiation from 2.4 GHz cordless phone affects autonomic nervous system

Magda Havas, Jeffrey Marrongelle, Bernhard Pollner, Elizabeth Kelley, Camilla Rees, Lisa Tully - 2010 - researchgate.net

"This study provides scientific evidence that some individuals may experience arrhythmia, heart palpitations, heart flutter, or rapid heartbeat and/or vasovagal symptoms such as dizziness, nausea, profuse sweating and syncope when exposed to electromagnetic devices."

Electromagnetic Field Sensitivity

William J. Rea, Yagin Pan, Ervin J. Fenyves, Iehiko Sujisawa, Hideo Suyama, Nasrola Samadi & Gerald H. Ross - 2009 - tandfonline.com

"A multiphase study was performed to find an effective method to evaluate electromagnetic field (EMF) sensitivity of patients. The first phase developed criteria for controlled testing using an environment low in chemical, particulate, and EMF pollution. Monitoring devices were used in an effort to ensure that extraneous EMF would not interfere with the tests."

"A second phase involved a single-blind challenge of 100 patients who complained of EMF sensitivity to a series of fields ranging from 0 to 5 MHz in frequency, plus 5 blank challenges. Twenty-five patients were found who were sensitive to the fields, but did not react to the blanks."

"These were compared in the third phase to 25 healthy naive volunteer controls. None of the volunteers reacted to any challenge, active or blank, but 16 of the EMF-sensitive patients (64%) had positive signs and symptoms scores, plus autonomic nervous system changes."

"In the fourth phase, the 16 EMF-sensitive patients were rechallenged twice to the frequencies to which they were most sensitive during the previous challenge. The active frequency was found to be positive in 100% of the challenges, while all of the placebo tests were negative. we concluded that this study gives strong evidence that electromagnetic field sensitivity exists, and can be elicited under environmentally controlled conditions."

Studies concerning other health effects may also be relevant for understanding EHS.