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Open research questions in Electromagnetic Fields and Biological Effects

90 unresolved questions extracted from the limitations and future-work sections of 303 Electromagnetic Fields and Biological Effects papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • There is a need to assess the electromagnetic exposure safety of electromagnetic security gates. The paper identifies major evidence gaps and future research priorities. There is a lack of studies on the interactions between electromagnetic security gates and active medical devices or passive metallic implants.

    Electromagnetic exposure safety assessment of electromagnetic security gates: a review · 2026 · DOI

  • The recent opinion piece by de Vocht and Albers used a narrow investigative lens and undermined the rationality of the concerned general public and the motives of specific researchers. The paper identifies a need for a more comprehensive analysis of the background and qualifications of authors involved in the 5G health discussion.

    Understanding the public voices and researchers speaking into the 5G narrative · 2024 · DOI

  • The study identifies the need to understand the mechanisms underlying the effects of EMTT on bone healing. The study faces the challenge of maintaining a stable environment for cell culture and EMTT stimulation. The study must ensure the reliability of subsequent analyses by verifying cell viability before each medium change and experimental procedure.

    Extracorporeal Magnetotransduction Therapy as a New Form of Electromagnetic Wave Therapy: From Gene Upregulation to Accelerated Matrix Mineralization in Bone Healing · 2024 · DOI

  • A set of questions that need to be answered to enable scientists to advise policy makers more effectively on matters of 5G and public health.

    Understanding the public voices and researchers speaking into the 5G narrative · 2024 · DOI

  • Acute and chronic health effects caused by these devices emitting radiofrequency radiation from multiple antennas have not been well evaluated.

    Hypothesis: ultrasonography can document dynamic in vivo rouleaux formation due to mobile phone exposure · 2025 · DOI

  • As a result, standardized protocols for PEMF treatment are lacking in clinical practice, leading to empirical application of PEMF stimulation and heterogeneity in treatment protocols.

    Insights into bone and cartilage responses to pulsed electromagnetic field stimulation: a review with quantitative comparisons · 2025 · DOI

  • 4 , 5 Although magnetoreception has been studied intensively, the mechanism remains elusive.

    Cataglyphis ants have a polarity-sensitive magnetic compass · 2024 · DOI

  • The frequency of the EMR investigated is limited to the commonly used bands, particularly the frequencies of the power line and the wireless communications; far fewer studies were performed for other EMR frequencies.

    Interactions between electromagnetic radiation and biological systems · 2024 · DOI

  • Investigating the evolutionary origins of magnetoreception in bees. Examining the relationship between magnetoreception and other sensory systems in bees. Exploring the potential applications of magnetoreception in bee conservation and management.

    Broad presence of ferromagnetism in bees and relationship to phylogeny, natural history, and sociality · 2026 · DOI

  • The weak and variable nature of magnetic-field-dependent responses, which has made controlled experimental investigation particularly challenging across model systems, has also limited our study to largely qualitative results. However, this two-photon imaging approach presented here suggests the feasibility of detecting weak, magnetic-field-dependent modulation of neural activity in the honeybee brain. By enabling in vivo measurements in a higher-order visual processing region, this framework provides access to downstream neural circuits in which magnetically elicited signals may be integrated and amplified. The observation of small fluorescence changes in the AOTu may provide a basis for probing the neural correlates of magnetoreception beyond primary sensory structures. Several technical improvements are expected to further enhance sensitivity and interpretability. First, the blue-light background signal that currently limits the detection of small fluorescence changes will be eliminated by implementing a flyback stimulation protocol, in which the blue laser is applied only during the galvanometric scanner retrace, which will also allow for increasing light stimulus intensity. Second, the present measurements are restricted to a single imaging plane, whereas magnetically modulated activity is likely distributed across the three-dimensional structure of the AOTu. Extending the approach to volumetric imaging will allow reconstruction of spatial activity patterns and may reveal localized or distributed response motifs. While the present results provide only preliminary evidence of magnetosensitive responses, the setup will allow for further investigation of the underlying mechanism, in particular, a controlled testing of key predictions of the radical pair mechanism models, including the requirement for short-wavelength (blue) light, the expected sensitivity to magnetic field axis rather than polarity, and the disruption of responses by weak radiofrequency fields, which can be easily integrated into the setup. Systematic variation of these parameters will be essential to determine whether the observed signals are consistent with a radical-pair–based mechanism. Finally, these first findings highlight the importance of systematically linking stimulus design to underlying biological hypotheses. In particular, the predominance of inhibitory responses under the present conditions complicates the interpretation of light dependence and suggests that stimulus configurations may need to be optimized to elicit excitatory activity. Identifying such conditions will be critical for disentangling the contributions of visual processing and magnetically induced modulation. Overall, this imaging framework provides a new methodological approach for studying magnetoreception within intact neural circuits, bridging the gap between molecular models and systems-level function. By enabling controlled, in vivo imaging of weak magnetic effects in the brain, it may open new avenues for testing mechanistic hypotheses and for dissecting how magnetic and visual information are integrated in the neural circuitry underlying animal navigation. 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 bioRxiv preprint The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is https://doi.org/10.64898/2026.05.05.722881 this version posted May 8, 2026. doi:; made available under a CC-BY-NC 4.0 International license.

    Experimental platform to study the neuronal mechanisms of magnetoreception in the honey bee. · 2026 · DOI

  • The study notes that the underlying drivers of the relationship between geomagnetic activity and neural activity remain to be established. The generalizability of the findings also remains to be determined. The study highlights the need for further investigation into the mechanisms and potential behavioral relevance of the lagged influence of geomagnetic activity on human brain oscillations.

    Delayed Correlations Between Geomagnetic Activity and Human EEG Alpha and Theta Oscillations: Evidence from Archival and Experimental Data · 2026 · DOI

  • The 19-day delay observed in both datasets suggests that geomagnetic disturbances may exert residual effects on neural dynamics well beyond immediate exposure, warranting further investigation into underlying mechanisms and potential behavioral relevance.

    Delayed Correlations Between Geomagnetic Activity and Human EEG Alpha and Theta Oscillations: Evidence from Archival and Experimental Data · 2026 · DOI

  • ObjectiveMagnetophosphenes are visual percepts induced by extremely low-frequency magnetic fields (ELF-MF; <300 Hz), yet the EEG expression of suprathreshold magnetophosphene-inducing stimulation remains poorly characterized and is not reliably captured by classical low-frequency markers.

    Broadband gamma-band EEG changes during magnetophosphene perception induced by 20 Hz magnetic field stimulation · 2026 · DOI

  • Future analyses will investigate 5G FR2-depedent changes in the microRNA landscape.

    Does 5G FR2 cause genomic instability in human skin? An in vitro study in primary skin cells · 2026 · DOI

  • There is a lack of data on potential adversity of 5G FR2. FR1 has been studied extensively in the last 30 years, but not FR2.

    Does 5G FR2 cause genomic instability in human skin? An in vitro study in primary skin cells · 2026 · DOI

  • Small sample size. Limited to untrained individuals. Limited to a specific age range (18-35 years).

    Pulsed electromagnetic field (PEMF) promotes muscle hypertrophy, increased maximum strength and strength endurance in untrained adults: a randomised parallel design · 2026 · DOI

  • Future studies should investigate the long-term effects of PEMF on muscle thickness and strength. Future studies should compare the effects of PEMF to other forms of exercise. Future studies should investigate the mechanisms underlying the effects of PEMF on muscle thickness and strength.

    Pulsed electromagnetic field (PEMF) promotes muscle hypertrophy, increased maximum strength and strength endurance in untrained adults: a randomised parallel design · 2026 · DOI

  • The study only examines the effects of microwave irradiation on a limited number of peptides. The study does not investigate the long-term effects of microwave irradiation on cellular viability.

    Microwave-induced modulation of intracellular distribution of peptides based on mitochondrial targeting sequences · 2026 · DOI

  • The lack of understanding of how microwave irradiation affects intracellular accumulation. The need for a systematic evaluation of the effects of microwave irradiation on peptide delivery.

    Microwave-induced modulation of intracellular distribution of peptides based on mitochondrial targeting sequences · 2026 · DOI

  • The lack of understanding of the effects of +Gz exposure on respiratory functions. The need to analyze short-term respiratory changes following +Gz exposure via PFT.

    Short-term effects of +Gz exposure on respiratory functions: results from human centrifuge training · 2026 · DOI

  • The study only measured radiation levels at a limited number of locations. The study did not investigate the health effects of radiofrequency radiation on humans.

    ASSESSMENT ON THE LEVEL OF BACKGROUND RADIATION EMITTED AROUND SELECTED TELECOMMUNICATION MASTS IN BUKURU, JOS SOUTH, PLATEAU STATE, NIGERIA · 2026 · DOI

  • The lack of information on the radiation levels emitted by telecommunication masts in Bukuru, Jos South. The debate on the long-term biological effects of low-level radiation exposure.

    ASSESSMENT ON THE LEVEL OF BACKGROUND RADIATION EMITTED AROUND SELECTED TELECOMMUNICATION MASTS IN BUKURU, JOS SOUTH, PLATEAU STATE, NIGERIA · 2026 · DOI

  • There is a need to investigate the intensity and extent of magnetic field exposure in transmission switchyards of hydropower stations. There is a lack of studies on the occupational exposure to anthropogenic magnetic field at 50/60 Hz.

    Investigating the Intensity and Extent of Magnetic Field Exposure in Transmission Switchyard of Hydropower Stations · 2026 · DOI

  • The study lacks direct brain thermometry. The research does not include a positive control. The study acknowledges the limitation of using mRNA findings as a measure of functional pathway activation.

    Reply to “Correspondence: radiofrequency and pulsed magnetic fields in LPS-induced neuroinflammation: interpreting the evidence for PI3K/AKT/HIF-1α-mediated protection” · 2026 · DOI

  • The study suggests the need for future research on the mechanisms of electromagnetic field exposure-induced neuroprotection. The research implies the importance of including SAR estimation and direct brain thermometry in future studies. The study highlights the potential of electromagnetic field exposure as a therapeutic approach for neuroprotection.

    Reply to “Correspondence: radiofrequency and pulsed magnetic fields in LPS-induced neuroinflammation: interpreting the evidence for PI3K/AKT/HIF-1α-mediated protection” · 2026 · DOI

Most-cited papers in Electromagnetic Fields and Biological Effects

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90 open questions have been extracted from the limitations and future-work passages of 303 Electromagnetic Fields and Biological Effects papers in our 4.5M-paper local library. Each one below links back to the study that raised it, so you can read the original claim in context.

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