6,486 Studies Reviewed. 85.2% of Original Studies Found Biological Effects. The Evidence is Clear.

EMF Research Studies

Browse 6,486 peer-reviewed studies on electromagnetic field health effects from 4 research libraries.

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Showing 430 studies in Cardiovascular

Effects of exposure to nearby mobile phone base stations and mobile phone usage on human blood parameters

​ Laldinpuii et al. · 2026

Researchers compared 50 people highly exposed to mobile phone base stations with 51 reference individuals, measuring complete blood counts and the stress markers amylase and cortisol. Stepwise regression showed that base-station exposure significantly predicted total leukocyte count, while gender, age and power density predicted basophil and monocyte counts, and daily mobile-phone use with age predicted basophil and lymphocyte counts. Almost a quarter of the highly base-station-exposed group had basophil counts above reference limits, and over half of heavy mobile-phone users (4–6 hours daily) had lymphocyte counts above limits, most under 30 years old. Smoking and age influenced amylase, but no exposure variable affected amylase or cortisol.

When biology meets polarity: Toward a unified framework for sex-dependent responses to magnetic polarity in living systems

Unknown authors · 2026

The review integrates evidence from magnetobiology and sex-based physiology to propose that hormonal and structural dimorphism may modulate biological responses to magnetic field. It notes that biological effects depend on field intensity, frequency, polarity, and direction, which are often overlooked. The review outlines potential mechanisms involving ion-channel modulation, magnetite orientation, and radical-pair dynamics, and proposes experimental paradigms to test these interactions.

Exploring the Potential Observations Between Geomagnetic Activity and Cardiovascular Events: A Scoping Review

Belenko J, Cancel G, Mayrovitz HN · 2025

A systematic literature search identified 1,718 articles published between 1964 and 2023, and after removing duplicates 36 studies were included. Myocardial infarction and acute coronary syndrome incidence increased during geomagnetic storms, solar proton events, and high-speed solar wind; stroke risk rose up to 52% during severe storms, especially in young adults. Low geomagnetic activity combined with high cosmic ray activity was consistently associated with increased myocardial infarction incidence and mortality, and the authors noted that findings remain inconsistent, rely on ecological designs, and are preliminary.

The effect of Wi-Fi on elastic and collagen fibres in the blood vessel wall of the chorioallantoic membrane

Unknown authors · 2025

Researchers continuously exposed chicken embryos to Wi-Fi radiation at 2.4 GHz and 300 µW/m² for 9 and 14 embryonic days. Standard haematoxylin and eosin staining showed no notable differences in large blood vessel structure between exposed and control groups. Special staining methods revealed an adverse effect of Wi-Fi on the fibrous elements of the vessel wall. Elastic fiber optical density decreased significantly at both 9 and 14 embryonic days, while collagen fiber optical density increased at day 9 and decreased at day 14.

Radiofrequency electromagnetic field ınhibits HIF-1 alpha and activates eNOS signaling to prevent intestinal damage in a model of mesenteric artery ischemia in rats

Unknown authors · 2025

Researchers used 32 Wistar Albino rats divided into four groups: sham, MIR, prophylactic RF-EMF plus MIR, and therapeutic RF-EMF plus MIR. After the experiment, blood and terminal ileum samples were collected for histopathological, immunohistochemical, genetic, and biochemical analyses. In the MIR group, expressions of Cas-3, TNF-α, VEGF, BAX, and HIF-1α increased, while OSI levels and PCNA, BCL2, and eNOS expressions decreased. Marked hyperemia, hemorrhage, edema, inflammatory cell infiltrations, and erosion or ulcers were observed in the MIR group. Both prophylactic and therapeutic RF-EMF treatment reversed these molecular and pathological changes, with therapeutic treatment showing more effective recovery.

Prophylactic Effects of Radiofrequency Electromagnetic Field on Pulmonary Ischemia-Reperfusion via HIF-1α/eNOS Pathway and BCL2/BAX Signaling

Unknown authors · 2025

Forty male Wistar rats were randomly divided into four groups (Sham, IR, IR+RF-EMF, RF-EMF), and IR was applied by 60 minutes of left lung hilus clamping followed by 60 minutes of reperfusion, while all rats were kept in the RF-EMF unit for 60 minutes with or without activation. IR injury increased emphysematous findings, hyperemia, septal thickness, TNF-alpha and caspase-3 expression, and raised total oxidant status, oxidative stress index, HIF-1α, eNOS, and BAX while decreasing BCL2. In the IR+RF-EMF group, improvement was detected in all parameters, indicating antioxidant, antiapoptotic, and anti-inflammatory effects through the HIF-1α/eNOS and BCL-2/BAX pathways.

Extremely low-frequency electromagnetic fields facilitate both osteoblast and osteoclast activity through Wnt/β-catenin signaling in the zebrafish scale

Kobayashi- Sun J et al. · 2024

Researchers used zebrafish scales as an in vivo model to study the effects of extremely low-frequency electromagnetic fields on fracture healing. Exposure to 10 mT ELF-EMFs at 60 Hz increased the numbers of both osteoblasts and osteoclasts at the fracture site, while 3 mT and 30 mT did not. The exposure also upregulated wnt10b and Wnt target genes and enhanced β-catenin expression at the fracture site. Inhibition of Wnt/β-catenin signaling by IWR-1-endo treatment reduced both osteoblasts and osteoclasts in the fractured scale exposed to ELF-EMFs.

Cardiovascular121 citations

Terahertz Irradiation Improves Cognitive Impairments and Attenuates Alzheimer's Neuropathology in the APPSWE/PS1DE9 Mouse: A Novel Therapeutic Intervention for Alzheimer's Disease

Zhang J, Chen Y, Zhao Y, Wang P, Ding H, Liu C, Lyu J, Le W · 2024

Researchers measured 0.14 THz wave penetration across mouse skulls and found approximately 70% penetration. They then exposed an Alzheimer's disease mouse model to repeated low-frequency terahertz waves on the head. The treatment significantly improved cognitive impairment and reduced amyloid-β deposition and tau hyperphosphorylation. It also attenuated mitochondrial impairment, neuroinflammation, and neuronal loss in the brain.

Exposure to a 0.9- GHz electromagnetic field on postnatal days 21-45 may trigger the renin-angiotensin system in male rat: a histological and biochemical study

Unknown authors · 2024

Twelve male rats aged 21 days were randomly assigned to control and EMF groups, with the EMF group exposed to 0.9 GHz EMF for one hour a day over 25 days. Exposure increased kidney tissue volume and weight, total body weight, and levels of lipid peroxidation, glutathione, catalase, and superoxide dismutase in kidney tissue. Histopathological evaluation revealed cortical and medullary bleeding, widespread fibrosis, tubular dilatation and degeneration, glomerular damage, and degeneration of Bowman's membrane, podocytes, and mesangial cells.

Cardiovascular205 citations

Mechanisms of magnetic sensing and regulating extracellular electron transfer of electroactive bacteria under magnetic fields

Zhou H et al. · 2023

MF treatment significantly enhanced electricity generation and overall energy efficiency of G. sulfurreducens by 50% and 22%, respectively. The response of current to MFs was instantaneous and reversible. Cyclic voltammetry showed redox couples changed from -0.31 to -0.39 V, suggesting that MFs could alter electron transfer components. Genes for periplasmic c-type cytochromes, outer membrane cytochromes, pili, and ribosome were upregulated under MF treatment. Enhanced electron transfer was also linked to overexpression of NADH dehydrogenase I, ABC transporter, transcriptional regulation, and ATP synthase.

CardiovascularNo Effects Found

Myocardial capacity of mitochondrial oxidative phosphorylation in response to prolonged electromagnetic stress

Unknown authors · 2023

Exposure significantly increased cardiac protein expression of mitochondrial Complex I, II, III, and IV subunits, while Complex V expression remained stable. Mitochondrial respiratory capacity was modified in exposed mice. Oxidative stress markers and antioxidant enzyme SOD2 were unchanged, and no structural or functional heart abnormalities were found.

The effects of long-term prenatal exposure to 900, 1800, and 2100 MHz electromagnetic field radiation on myocardial tissue of rats

Unknown authors · 2023

Researchers exposed pregnant rats to 900, 1800, and 2100 MHz EMF radiation for 6, 12, or 24 hours per day over 20 days. After birth, six male pups per group were randomly selected for histopathological and biochemical analysis of myocardial tissue. Myocardial damage was greatest in the 2100 MHz 24-hour group, which also had higher MDA and lower GSH levels. At 1800 MHz, the 24-hour exposure group showed greater damage, higher MDA, and lower GSH compared to shorter durations. The authors concluded that myocardial tissue is more affected by long-term high-frequency EMF exposure and raised concerns about 5G technology.

CardiovascularNo Effects Found

Static magnetic field on behavior, hematological parameters and organ damage in spontaneously hypertensive rats

Tasić T et al. · 2020

Researchers exposed spontaneously hypertensive rats to upward or downward oriented static magnetic fields of moderate intensity for a subchronic period. Rats exposed to downward oriented fields showed a lack of anxious-like behavior. Both field orientations decreased platelets in peripheral blood, granulocytes in spleen and bone marrow, and increased erythrocytes in the spleen. Upward oriented fields decreased blood lymphocytes and bone marrow erythrocytes, while downward oriented fields increased bone marrow lymphocytes. Heart and kidney morphological characteristics were unaffected by either field orientation.

CardiovascularNo Effects Found

Effects of Exposure to 5.8 GHz Electromagnetic Field on Micronucleus Formation, DNA Strand Breaks, and Heat Shock Protein Expressions in Cells Derived From Human Eye

Unknown authors · 2019

Twenty subjects underwent 30 minutes of acute cold exposure with blood drawn at baseline, during exposure, and two hours after. Acute cold exposure increased heart rate by 11%, shivering sensations fourfold, pain twofold, oxygen consumption by 50%, and energy expenditure by 52%. IL-1? rose 24% at 30 minutes and 65% at two hours post-exposure, alpha-2-macroglobin rose 16% at 30 minutes then returned to baseline, and HDL rose 15% at two hours. Sex differences were observed for IL-2, IL-6, IL-8, ferritin, alpha-2-macroglobin, and HDL.

Protective properties of Myrtus communis extract against oxidative effects of extremely low-frequency magnetic fields on rat plasma and hemoglobin.

Seif F, Bayatiani MR, Ansarihadipour H, Habibi G, Sadelaji S · 2018

Researchers divided adult male rats into three groups: a control group, a group exposed to extremely low-frequency magnetic fields (ELFMF), and a group given Myrtus communis extract before ELFMF exposure. The magnetic field was set at 0.7 mT and 50 Hz, applied for two hours a day for one month. ELFMF exposure decreased plasma antioxidant power and significantly increased markers of oxidative damage, including protein carbonyl, methemoglobin, and hemichrome concentrations. Administration of M. communis extract increased antioxidant power and decreased plasma protein carbonyl, methemoglobin, and hemichrome concentrations.

Acute effects of 30 minutes of exposure to a smartphone call on in vitro platelet function.

Lippi G et al. · 2017

Researchers collected two sequential citrated blood samples from 16 healthy volunteers and exposed one sample to a smartphone call for 30 minutes at 900 MHz. Exposure significantly prolonged collagen-epinephrine aggregation by a median of 10% and increased mean platelet volume by a median of 5%. Collagen-adenosine diphosphate aggregation and platelet count did not change.

Extremely low frequency electromagnetic field (ELF-EMF) reduces oxidative stress and improves functional and psychological status in ischemic stroke patients.

Cichoń N, Bijak M, Miller E, Saluk J. · 2017

Researchers investigated the effect of ELF-EMF on clinical and antioxidant status in post-stroke patients. Fifty-seven patients were divided into two groups: ELF-EMF and non-ELF-EMF, and both groups underwent the same 4-week rehabilitation program. The ELF-EMF group was additionally exposed to a field of 40 Hz, 7 mT for 15 min/day for 4 weeks, 5 days a week. ELF-EMF significantly increased enzymatic antioxidant activity, though total antioxidant status levels did not change in either group.

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