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Brain & Nervous System

Effect of whole-body exposure to the 848.5-MHz code division multiple access (CDMA) electromagnetic field on adult neurogenesis in the young, healthy rat brain.

No Effects Found

Kim HS, Kim YJ, Lee YH, Lee YS, Choi HD, Pack JK, Kim N, Ahn YH. · 2014

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Two weeks of cell phone radiation exposure at 2 W/kg didn't affect new brain cell formation in rats, but longer-term effects remain unknown.

Plain English Summary

Summary written for general audiences

Korean researchers exposed rats to cell phone radiation at levels similar to what phones emit (2 W/kg SAR) for up to 8 hours daily over two weeks, then examined whether this affected the brain's ability to generate new neurons. They found no significant changes in new brain cell formation in two key brain regions compared to unexposed rats, suggesting that short-term CDMA cell phone radiation exposure doesn't impair neurogenesis in healthy adult brains.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 848.5 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 848.5 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

The study examined exposure from: 848.5 MHz CDMA Duration: 1 or 8 h daily, 5 days per week, for 2 weeks

Study Details

Whether exposure to the 848.5 MHz code division multiple access (CDMA) signal affects adult neurogenesis is unclear.

An animal experiment was performed with a reverberation chamber designed as a whole-body CDMA exposu...

We found no significant changes in the number of BrdU(+) cells in the SVZ or DG in the CDMA-exposed ...

Our results suggest that exposure to the CDMA signal does not affect neurogenesis in the adult rat brain, at least under our experimental conditions.

Cite This Study
Kim HS, Kim YJ, Lee YH, Lee YS, Choi HD, Pack JK, Kim N, Ahn YH. (2014). Effect of whole-body exposure to the 848.5-MHz code division multiple access (CDMA) electromagnetic field on adult neurogenesis in the young, healthy rat brain. Int J Radiat Biol. 2014 Dec 15:1-15.
Show BibTeX
@article{hs_2014_effect_of_wholebody_exposure_2769,
  author = {Kim HS and Kim YJ and Lee YH and Lee YS and Choi HD and Pack JK and Kim N and Ahn YH.},
  title = {Effect of whole-body exposure to the 848.5-MHz code division multiple access (CDMA) electromagnetic field on adult neurogenesis in the young, healthy rat brain.},
  year = {2014},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/25510255/},
}
PubMed: 25510255

Cited By (8 papers)

Quick Questions About This Study

No, CDMA 848.5 MHz radiation at 2 W/kg SAR doesn't affect brain cell growth. Korean researchers exposed rats to this specific cell phone frequency for up to 8 hours daily over two weeks and found no significant changes in new neuron formation in key brain regions compared to unexposed rats.
Eight hours of daily CDMA phone exposure doesn't damage neurogenesis in healthy adult brains. A 2014 study found no significant effects on new brain cell formation in rats exposed to 848.5 MHz CDMA radiation at phone-typical levels for two weeks straight.
Yes, 2 W/kg SAR CDMA radiation appears safe for adult brain development. Research showed no significant impact on neurogenesis in the subventricular zone or dentate gyrus brain regions after two weeks of exposure to 848.5 MHz CDMA signals at this specific absorption rate.
CDMA cell phone radiation doesn't affect hippocampus neurogenesis in rats. Scientists found no significant changes in new brain cell formation in the dentate gyrus region of the hippocampus after exposing healthy adult rats to 848.5 MHz CDMA radiation for two weeks.
Brain cells remain unaffected after two weeks of CDMA 848.5 MHz exposure. The study found no significant changes in the number of newly formed brain cells in two key neurogenesis regions compared to control groups, suggesting short-term CDMA exposure doesn't impair brain cell formation.