Do mobile phones cause brain cancer?

Numbers match the citations in the article. A working link isn't proof that a page supports a claim; check the quoted passage and date.

1. 1

   Health risks of radiofrequency electromagnetic fields, and the World Health Organization's programme.

   The New Zealand medical journal (Elwood & Karipidis)Published Jul 17, 2026Checked Oct 4, 2026

   “Radiofrequencies (electromagnetic fields from 100kHz to 300GHz) are used for communications, such as mobile phones, radio and television broadcasting, and some other applications such as diathermy. Possible health effects have been studied extensively, especially whether the use of mobile phones increases the risk of brain cancer. The World Health Organization (WHO) has sponsored 13 extensive reviews of the scientific studies on health effects. For human epidemiological and some experimental studies on volunteers, the studies found no increased risk for most effects, with up to moderate confidence (the highest category for observational studies). Some results showed effects on cognitive performance and reduced sperm vitality, but with very low confidence. For animal studies, increases in glioma and heart schwannoma in male rats were reported with high confidence. Increases in some other cancers, and reductions in foetal weight, pregnancy rate and sperm count, were found with moderate or low confidence. The relevance of the animal studies to humans is a key issue. These reviews will be used by the WHO in risk assessment and setting guidelines for exposure and good practice.”

2. 2

   Non-ionizing radiation and cancer: A review on current evidence, mechanistic insights, and public health implications.

   Biochemistry and biophysics reports (Agrahari et al.)Published Jul 7, 2026Checked Oct 4, 2026

   “This review aims to analyze the findings of RF-EMF exposure and carcinogenicity by integrating epidemiological studies and experimental findings to demonstrate its potential function in cancer manifestation.The available evidence is not sufficient to conclude that RF-EMF exposure is a direct-acting genotoxic carcinogen or cancer initiator. However, laboratory studies have indicated that long-term exposure to non-thermal RF-EMF can cause oxidative stress, genomic instability, epigenetic alterations, ion transport disruption and dysregulation of cell-signaling pathways. These biological effects may contribute to the promotion and progression stages of carcinogenesis, but are not directly responsible for tumor/cancer initiation. The epidemiological evidence significantly varies between extremely low-frequency magnetic fields (ELF-MF) and radiofrequency electromagnetic fields (RF-EMF). Although ELF-MF exposure has demonstrated a more reliable association with childhood leukemia, the data connecting RF-EMF exposure to cancer is less consistent.Studies with the larger sample size and increased exposure duration are needed to strongly corroborate its involvement in cancer development.”

3. 3

   Wireless device radiation and health (Wikipedia)

   WikipediaPublished Oct 3, 2026Checked Oct 4, 2026

   “The antennas contained in mobile phones, and various other electronic devices, emit radiation which consists of non-ionising radiation or radiofrequency electromagnetic fields (RF EMF) such as microwaves. The parts of the head or body nearest to the antenna can absorb this energy in the form of heat. Since at least the 1990s, scientists have researched whether the now-ubiquitous radiation associated with mobile phone antennas, Wi-Fi routers or cell phone towers is affecting human health. Mobile phone networks use various bands of RF radiation, some of which overlap with the microwave range. In response to public concern, the World Health Organization (WHO) established the International EMF (Electric and Magnetic Fields) Project in 1996 to assess the scientific evidence of possible health effects of RF EMF with a frequency range from 3 kilohertz (KHz) to 300 gigahertz (GHz). They have conducted a survey in 2019 among 300 radiofrequency scientists to prioritize the most important potential health effects from exposure to radiofrequency electromagnetic fields.”

4. 4

   A review of potential health risks of radiofrequency electromagnetic field exposure from mobile phones and base stations in children and pregnant women.

   Frontiers in public health (Dogra et al.)Published Sep 11, 2026Checked Oct 4, 2026

   “Confining the timeframe ensures a more relevant and up-to-date assessment of current exposure patterns and emerging biological insights. The review explores the association between RF-EMF exposure and major health outcomes, including reproductive and developmental effects, cancer risk, and neurological changes. It also integrates mechanistic pathways involving oxidative stress, DNA damage, and ROS signalling. Although no definitive causal relationship has been established, the evidence remains inconsistent due to variability in study design, exposure metrics, and outcome definitions. Notably, experimental and high-exposure studies provide biologically plausible mechanisms, particularly through oxidative stress pathways; however, these findings have not been consistently observed in the human population. Children and foetuses may exhibit greater susceptibility because of developmental and physiological factors, yet high-quality longitudinal evidence remains limited. Overall, further standardized, mechanistic, and long-term studies are needed to strengthen the scientific evidence base and inform public health policy.”

5. 5

   Interpretation of Epidemiological Studies on the Relationship Between Mobile Phone Use and Cancer.

   Epidemiologia (Basel, Switzerland) (Kundi & Hutter)Published Jun 17, 2026Checked Oct 4, 2026

   “RRs for neuroepithelial childhood brain tumors in comparison to the findings of the MOBIkids study; and (3) hazard ratios in comparison to the results of the Million Women Study (MWS).ResultsThe meta-analytical odds ratio for glioma and long-term MP use in adults of 1.22 (95% confidence-interval: 1.02-1.46) could be explained by a shift in the age-incidence function by 32% of MP usage duration. Applying a 20% shift for childhood neuroepithelial brain tumors reproduced the ORs that were predominantly less than 1 in the MOBIkids study. For glioma risk in perimenopausal women in relation to long-term MP use in the MWS we found hazard-ratios close to 1 applying a 32% shift in the age-incidence function.ConclusionsThe standard interpretation of relative risk estimates must be revised if exposure to the agent commenced after the malignant development has already started. All reported RR estimates of MP use can be reproduced by positing MP use increased tumor growth rate. However, since these results are obtained applying a modeling approach, further tests using epidemiological methods, which will be difficult or hardly feasible, or utilizing more promising laboratory methods are needed.”