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Effects of mobile phone radiation (900 MHz radiofrequency) on structure and functions of rat brain.

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Saikhedkar N, Bhatnagar M, Jain A, Sukhwal P, Sharma C, Jaiswal N. · 2014

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Mobile phone radiation caused brain damage and memory problems in rats after just 15 days of heavy exposure.

Plain English Summary

Summary written for general audiences

Researchers exposed young rats to 900 MHz mobile phone radiation for 4 hours daily over 15 days and found significant brain damage in memory centers like the hippocampus. The exposed rats showed increased anxiety, poor learning ability, and cellular damage from oxidative stress (harmful molecules that damage cells). This suggests that prolonged mobile phone use may harm brain function and memory formation.

Why This Matters

This study adds to mounting evidence that radiofrequency radiation from mobile phones can cause measurable brain damage, particularly in developing nervous systems. The 900 MHz frequency tested here is commonly used by GSM cell phones, and the 4-hour daily exposure reflects heavy phone use patterns among teenagers and young adults. What makes this research particularly concerning is the comprehensive approach - the researchers didn't just look at one effect, but documented behavioral changes, cellular damage, and the underlying biochemical mechanisms all pointing in the same direction. The finding that antioxidant systems were overwhelmed suggests the brain's natural defenses were insufficient to protect against this level of RF exposure. While we can't directly extrapolate from rats to humans, the hippocampus functions similarly across mammalian species, and the oxidative stress pathway identified here operates the same way in human brains.

Exposure Information

A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 900 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 900 MHzPower lines50/60 Hz5G mm28 GHzLogarithmic scale

Specific exposure levels were not quantified in this study. The study examined exposure from: 900 MHz Duration: 4 hours per day for 15 days

Study Details

The goals of this study were: (1) to obtain basic information about the effects of long-term use of mobile phones on cytological makeup of the hippocampus in rat brains (2) to evaluate the effects on antioxidant status, and (3) to evaluate the effects on cognitive behavior particularly on learning and memory.

Rats (age 30 days, 120 ± 5 g) were exposed to 900 MHz radio waves by means of a mobile hand set for ...

A significant change in behavior, i.e., more anxiety and poor learning was shown by test animals as ...

Thus our findings indicate extensive neurodegeneration on exposure to radio waves. Increased production of reactive oxygen species due to exhaustion of enzymatic and non-enzymatic antioxidants and increased lipid peroxidation indicate extensive neurodegeneration in selective areas of CA1, CA3, DG, and the cerebral cortex. This extensive neuronal damage results in alterations in behavior related to memory and learning.

Cite This Study
Saikhedkar N, Bhatnagar M, Jain A, Sukhwal P, Sharma C, Jaiswal N. (2014). Effects of mobile phone radiation (900 MHz radiofrequency) on structure and functions of rat brain. Neurol Res. 2014 May 26:1743132814Y0000000392.
Show BibTeX
@article{n_2014_effects_of_mobile_phone_1701,
  author = {Saikhedkar N and Bhatnagar M and Jain A and Sukhwal P and Sharma C and Jaiswal N.},
  title = {Effects of mobile phone radiation (900 MHz radiofrequency) on structure and functions of rat brain.},
  year = {2014},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/24861496/},
}
PubMed: 24861496

Cited By (72 papers)

View all 72 citing papers on Semantic Scholar

Quick Questions About This Study

Research exposing young rats to 900 MHz radiation for 4 hours daily over 15 days found significant damage to hippocampal neurons. The study showed neurodegeneration in memory centers including CA1, CA3, and dentate gyrus regions, suggesting prolonged phone use may harm brain structures critical for memory formation.
Yes, rats exposed to 900 MHz mobile phone radiation for 15 days showed significantly increased anxiety compared to control groups. The animals also demonstrated poor learning ability, indicating that this frequency may affect both emotional regulation and cognitive function in developing brains.
The study found significant depletion of antioxidant enzymes and increased lipid peroxidation in rats exposed to 900 MHz radiation. This indicates cellular damage from reactive oxygen species, suggesting that chronic phone radiation exposure may overwhelm the brain's natural protective mechanisms against oxidative stress.
Research found neurodegenerative cells in both hippocampal regions and cerebral cortex after 15 days of 900 MHz exposure. The cellular damage was extensive enough to cause behavioral changes in memory and learning, indicating that phone radiation may affect multiple brain regions simultaneously.
Rats exposed to 900 MHz mobile phone radiation for 4 hours daily showed poor learning ability compared to unexposed controls. The learning deficits correlated with neuronal damage in memory centers, suggesting that chronic phone radiation exposure may impair cognitive development and performance.