8,700 Studies Reviewed. 87.0% Found Biological Effects. The Evidence is Clear.
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Cancer & Tumors

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Key Finding: 79% of 742 studies on cancer & tumors found biological effects from EMF exposure.

Of 742 studies examining cancer & tumors, 79% found measurable biological effects from EMF exposure.

Lowest Documented Effect

Research found effects on cancer & tumors at exposures as low as:

Study Exposure Level in ContextStudy Exposure Level in Context0.00002, 0.0002, 0.008Extreme Concern - 1,000 uW/m2FCC Limit - 10M uW/m2Effects observed in the No Concern rangeFCC limit is 500,000,000,000x higher than this level

Research Overview

  • -When nearly 60% of studies examining EMF exposure and cancer risk find evidence of effects, the scientific community is sending a clear signal that deserves your attention.
  • -Out of 226 peer-reviewed studies, 135 have documented associations between electromagnetic field exposure and various forms of cancer and tumor development.
  • -This isn't a handful of outlier studies or preliminary findings - this represents a substantial body of evidence spanning decades of research across multiple countries and research institutions.

When nearly 60% of studies examining EMF exposure and cancer risk find evidence of effects, the scientific community is sending a clear signal that deserves your attention. Out of 226 peer-reviewed studies, 135 have documented associations between electromagnetic field exposure and various forms of cancer and tumor development. This isn't a handful of outlier studies or preliminary findings - this represents a substantial body of evidence spanning decades of research across multiple countries and research institutions.

The evidence shows that reducing exposure duration and intensity can meaningful impact your cellular health, and that knowledge gives you the power to take practical steps that may reduce your long-term cancer risk.

The research presented in this section demonstrates significant evidence that extremely low frequency electromagnetic field (ELF-EMF) exposures can cause DNA damage and genetic alterations relevant to leukemia development.

Source: BioInitiative Working Group. BioInitiative Report: A Rationale for Biologically-based Public Exposure Standards for Electromagnetic Radiation. Edited by Cindy Sage and David O. Carpenter, BioInitiative, 2012, updated 2020. www.bioinitiative.org

Showing 742 studies

Hambarde S, Pandey A, Baskin DS, Helekar SA

Unknown authors · 2026

Researchers developed a new magnetic device that uses spinning oscillating magnetic fields to selectively kill aggressive brain cancer cells while leaving healthy brain cells unharmed. The device works by damaging the energy-producing parts of cancer cells, causing them to die through a natural cell death process. This represents a potentially safer approach to treating deadly brain cancers like glioblastoma.

Kim HS, Han KH, Kim YB, Jeon SB, Lee AK, Moon JI, Choi HD, Imaida K, Yokohira M, Kawabe M, Imai N, Wang J, Ahn YH

Unknown authors · 2026

Korean researchers exposed male rats to CDMA-modulated 900 MHz radiofrequency radiation at 4 W/kg (the international safety guideline level) for nearly their entire lifespans. They found no increased cancer rates, no genetic damage, and no effects on heart, brain, or adrenal glands. This was part of a coordinated study with Japan to verify earlier National Toxicology Program findings.

Imaida K, Kawabe M, Wang J, Yokohira M, Imai N, Han K-H, Kim Y-B, Jeon SB, Kim HY, Ahn YH.The International Collaborative Animal Study of Mobile Phone Radiofrequency Radiation Carcinogenicity and Genotoxicity: The Japanese Study

Unknown authors · 2026

Japanese researchers exposed rats to 900 MHz cell phone radiation at high levels (4 W/kg) for nearly two years to test cancer risk. They found no increase in tumors or DNA damage, contradicting earlier U.S. studies that suggested RF radiation might cause brain and heart tumors in rats.

Such non-linear responses have been described previously for a range of RF-EMF induced outcomes (Lai and Levitt 2022; Weller et al

Rather than suggesting that there are ‘no consistent effects et al. · 2025

This 2025 review examines how radiofrequency electromagnetic fields can be used therapeutically in cancer treatment. The authors argue that cancer cells have different electrical properties than normal cells, making them potentially vulnerable to specific RF-EMF treatments that have shown promise in clinical trials with minimal side effects.

(2025) Radiofrequency radiation from mobile phones and the risk of breast cancer: A multicenter case–control study with an additional suspected comparison group

Tahmasebi et al · 2025

Iranian researchers studied 226 women to examine whether mobile phone use increases breast cancer risk. They found women who talked on phones for more than 60 minutes daily had 3.5 times higher odds of confirmed breast cancer compared to those using phones less than 10 minutes daily. The study also included a 'suspected' group of women advised to get mammograms, who showed even higher associations with phone use.

Effects of radiofrequency electromagnetic field exposure on cancer in laboratory animal studies, a systematic review

Mevissen et al · 2025

This comprehensive 2025 review analyzed 52 animal studies to evaluate whether radiofrequency electromagnetic field exposure causes cancer. Researchers found high-certainty evidence for increased brain tumors (gliomas) and heart tumors (schwannomas) in male rats, the same tumor types previously linked to cell phone use in humans. The findings strengthen concerns about RF-EMF carcinogenicity that led to its classification as a possible human carcinogen in 2011.

Geng D, Liu A, Yan Y, Zheng W

Unknown authors · 2025

Researchers conducted the largest genetic study of nasopharyngeal carcinoma (NPC), analyzing nearly 14,000 people to identify genetic variants that increase cancer risk. They found three key genetic changes that make people more susceptible to this throat cancer, with one variant affecting how Epstein-Barr virus (EBV) behaves in cells. The study reveals how genetics and viral infections work together to cause this cancer.

Pulsed Electromagnetic Field Therapy Alters the Genomic Profile of Bladder Cancer Cell Line HT-1197

Unknown authors · 2025

Researchers exposed bladder cancer cells (HT-1197) to pulsed electromagnetic field (PEMF) therapy for one hour daily over five days. The treated cancer cells grew significantly slower than untreated cells and showed major changes in gene expression patterns. This suggests PEMF therapy might offer a less invasive treatment approach for bladder cancer patients.

Investigating the expression changes of several key genes in prostate cancer cells under exposure to the ELF pulsed electromagnetic fields

Unknown authors · 2025

Researchers exposed prostate cancer cells to extremely low-frequency pulsed electromagnetic fields at 22.6 and 35 mT intensities. The treatment killed cancer cells and activated genes that suppress tumors while reducing genes that promote cancer growth. This suggests EMF therapy could potentially help treat prostate cancer with fewer side effects than traditional treatments.

Relationship between radiofrequency-electromagnetic radiation from cellular phones and brain tumor: meta-analyses using various proxies for RF-EMR exposure-outcome assessment

Moon et al · 2024

Korean researchers analyzed 24 studies involving cell phone use and brain tumors, finding that people who used phones on the same side of their head where tumors developed had 40% higher odds of brain cancer. The risk increased with longer use, reaching 59% higher odds for those with over 896 hours of cumulative phone time.

Moori M, Norouzian D, Yaghmaei P, Farahmand L

Unknown authors · 2024

Researchers exposed breast cancer cells to extremely low-frequency electromagnetic fields (1 Hz, 100mT) for 2 hours daily over 5 days. The EMF exposure significantly reduced cancer cell invasion and migration while increasing protective E-cadherin proteins and decreasing harmful N-cadherin proteins. This suggests ELF-EMF might potentially help prevent breast cancer metastasis.

Colciago A, Mohamed T, Colleoni D, Melfi V, Magnaghi V

Unknown authors · 2024

Italian researchers exposed Schwann cells (nerve-supporting cells) to electromagnetic fields at 50 Hz frequency for 10 minutes and found the cells shifted toward a less healthy state. The study suggests EMF exposure may trigger epigenetic changes that could contribute to schwannoma tumor development. This adds laboratory evidence to epidemiological studies linking EMF exposure to peripheral nerve tumors.

Polyvinyl Alcohol Capped Silver Nanostructures for Fortified Apoptotic Potential Against Human Laryngeal Carcinoma Cells Hep-2 Using Extremely-Low Frequency Electromagnetic Field

Unknown authors · 2024

Researchers tested whether combining silver nanoparticles with extremely low frequency electromagnetic fields (50 mT for 30 minutes) could better kill laryngeal cancer cells. The combination was 6 times more effective at destroying cancer cells than nanoparticles alone, triggering cell death and blocking cancer cell reproduction. This suggests EMF might enhance certain cancer treatments under controlled conditions.

Polyvinyl Alcohol Capped Silver Nanostructures for Fortified Apoptotic Potential Against Human Laryngeal Carcinoma Cells Hep-2 Using Extremely-Low Frequency Electromagnetic Field

Unknown authors · 2024

Researchers combined silver nanoparticles with extremely low frequency electromagnetic fields (50 mT for 30 minutes) to attack human laryngeal cancer cells. The combination increased cancer cell death by 6-fold compared to nanoparticles alone. This suggests EMF can enhance certain medical treatments, though the high field strength used far exceeds typical environmental exposure.

Sci Rep 13(1):17806, 2023

Unknown authors · 2023

Researchers developed gold-based nanoparticles that use near-infrared light to trigger a specific type of cell death called ferroptosis in brain cancer cells. The study found these particles could cross the blood-brain barrier and selectively target glioblastoma tumors while extending survival time in mice. This represents a new approach to treating aggressive brain cancers using light-activated therapy.

Residential exposure to magnetic fields from transformer stations and risk of childhood leukemia

Unknown authors · 2023

Italian researchers studied 182 children with leukemia and 726 healthy controls to see if living near electrical transformer stations increases cancer risk. They found no overall increased risk, but children aged 5 and older showed some elevated risk when living within 15-25 meters of transformers. The study was limited by small numbers of children actually living that close to transformer stations.

Son Y, Park H-J, Jeong YJ, Choi H-D, Kim N, Lee H-J

Unknown authors · 2023

Scientists analyzed genetic data from over 172,000 people of East Asian ancestry to identify genetic variants that increase lung cancer risk. They discovered 12 new genetic markers linked to lung adenocarcinoma, with most findings specific to East Asian populations rather than Europeans. The genetic risk factors were stronger in people who never smoked compared to smokers.

Chen C, Yan Z-S Ma Y-Q, Ding H-M

Unknown authors · 2023

This clinical trial studied 421 kidney cancer patients comparing a combination immunotherapy treatment (toripalimab plus axitinib) against standard chemotherapy (sunitinib). The combination therapy significantly extended progression-free survival from 9.8 months to 18.0 months and doubled response rates from 31% to 57%.

Son Y, Park H-J, Jeong YJ, Choi H-D, Kim N, Lee H-J

Unknown authors · 2023

Researchers analyzed genetic data from over 172,000 people of East Asian ancestry to identify genetic variants that increase lung cancer risk. They discovered 12 new genetic markers linked to lung adenocarcinoma, the most common type of lung cancer. Importantly, these genetic risk factors had stronger effects in people who never smoked compared to smokers.

Sci Rep 13(1):17806, 2023

Unknown authors · 2023

Researchers developed gold-based nanoparticles that use near-infrared light to trigger a specific type of cell death called ferroptosis in brain tumor cells. The nanoparticles can cross the blood-brain barrier and be tracked visually, allowing doctors to see exactly where they go in the brain. This approach successfully extended survival time in mice with brain tumors by specifically targeting cancer cells while sparing healthy tissue.

Sci Rep 13(1):17806, 2023

Unknown authors · 2023

Researchers developed gold-based nanoparticles that use near-infrared light to trigger a specific type of cell death called ferroptosis in brain tumors. The nanoparticles successfully crossed the blood-brain barrier and selectively killed glioblastoma cells while extending survival time in mice. This represents a new approach using gold instead of iron to activate targeted cancer cell death.

Cancer & Tumors781 citations

Biology (Basel) 11(2):323, 2022.(AS, AE, CC, IX)

Unknown authors · 2022

This comprehensive review examined how cancer cells reshape the extracellular matrix (the structural framework surrounding cells) to promote tumor growth and evade immune system attacks. Researchers found that tumors actively remodel this cellular scaffolding to create a protective barrier that helps cancer spread and resist treatment. The findings suggest that 'normalizing' this altered matrix could offer new therapeutic approaches.

Anticancer and antibacterial potentials induced post short-term exposure to electromagnetic field and silver nanoparticles and related pathological and genetic alterations: in vitro study

Unknown authors · 2022

Researchers tested extremely low frequency electromagnetic fields (ELF-EMF) and silver nanoparticles against bacteria and breast cancer cells. The combination achieved 100% bacterial kill rates and triggered cancer cell death through programmed cell destruction. The study suggests these agents work by creating oxidative stress that damages harmful cells while potentially sparing healthy ones.

Extremely Low Frequency Magnetic Fields Induce mTOR and Hsa_Circ_100338 Expression Changes in Gastric Cancer and Normal Fibroblast Cell Lines

Unknown authors · 2022

Researchers exposed normal and gastric cancer cells to extremely low frequency magnetic fields at different intensities for 18 hours. They found that specific field strengths (0.25 and 0.5 millitesla) reduced cancer cell viability while boosting normal cell health, and decreased expression of genes linked to tumor growth and spread. This suggests certain EMF exposures might have therapeutic potential against gastric cancer.

Learn More

For a comprehensive exploration of EMF health effects including cancer & tumors, along with practical protection strategies, explore these books by R Blank and Dr. Martin Blank.

FAQs: EMF & Cancer & Tumors

When nearly 60% of studies examining EMF exposure and cancer risk find evidence of effects, the scientific community is sending a clear signal that deserves your attention. Out of 226 peer-reviewed studies, 135 have documented associations between electromagnetic field exposure and various forms of cancer and tumor development.
The SYB Research Database includes 742 peer-reviewed studies examining the relationship between electromagnetic field exposure and cancer & tumors. These studies have been conducted by researchers worldwide and published in scientific journals. The research spans multiple decades and includes various types of EMF sources including cell phones, WiFi, power lines, and other common sources of electromagnetic radiation.
79% of the 742 studies examining cancer & tumors found measurable biological effects from EMF exposure. This means that 587 studies documented observable changes in biological systems when exposed to electromagnetic fields. The remaining 21% either found no significant effects or had inconclusive results, which is typical in scientific research where study design and exposure parameters vary.