Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.
Exposure to 26.5 GHz, 5G modulated and unmodulated signal, does not affect key cellular endpoints of human neuroblastoma cells
Authors not listed · 2025
26.5 GHz 5G signals showed no cellular damage in controlled lab study, but more research needed.
Plain English Summary
Researchers exposed human brain cancer cells to 26.5 GHz 5G signals for 3 hours at 1.25 W/kg and found no effects on cell division, DNA damage, or other key cellular functions. The study tested both continuous wave and modulated 5G signals using highly controlled laboratory conditions. This adds to the growing body of research examining potential health effects of millimeter wave 5G frequencies.
Why This Matters
This study provides important data on 26.5 GHz 5G signals, which operate in the millimeter wave spectrum that's central to 5G's promise of ultra-fast speeds. The researchers used a sophisticated reverberation chamber system to ensure precise exposure conditions, which strengthens the reliability of their findings. What's particularly noteworthy is that they tested both continuous wave and actual 5G modulated signals at 1.25 W/kg, a level that exceeds typical real-world exposures from 5G base stations but remains within safety guidelines.
However, this single study shouldn't close the book on 5G safety concerns. The researchers themselves acknowledge that further investigations with different exposure parameters are needed. The reality is that 5G millimeter waves represent a relatively new exposure paradigm for widespread human exposure, and the long-term effects remain largely unstudied. While these findings are reassuring, they represent just one piece of a much larger puzzle that requires comprehensive research across multiple biological systems and exposure scenarios.
Exposure Information
Specific exposure levels were not quantified in this study.
Show BibTeX
@article{exposure_to_265_ghz_5g_modulated_and_unmodulated_signal_does_not_affect_key_cellular_endpoints_of_human_neuroblastoma_cells_ce3006,
author = {Unknown},
title = {Exposure to 26.5 GHz, 5G modulated and unmodulated signal, does not affect key cellular endpoints of human neuroblastoma cells},
year = {2025},
doi = {10.1038/s41598-025-04834-3},
}