Note: This study found no significant biological effects under its experimental conditions. We include all studies for scientific completeness.
Short term exposure to 1439 MHz pulsed TDMA field does not alter melatonin synthesis in rats.
Hata K, Yamaguchi H, Tsurita G, Watanabe S, Wake K, Taki M, Ueno S, Nagawa H. · 2005
View Original AbstractShort-term cell phone radiation exposure didn't affect sleep hormones in rats, but longer-term studies remain needed.
Plain English Summary
Japanese researchers exposed 208 rats to cell phone-like radiation at 1439 MHz for 12 hours to see if it affected melatonin production (the hormone that regulates sleep). They found no changes in melatonin or serotonin levels even at radiation levels four times stronger than typical mobile phones. However, the authors noted that longer exposure studies are still needed to fully understand potential effects.
Study Details
The aim of this study was to clarify the effects on melatonin synthesis in rats after short term exposure to a 1439 MHz time division multiple access (TDMA) EMF.
The average specific absorption ratio (SAR) of the brain was 7.5 W/kg, and the average SARs of the w...
No significant differences in melatonin and serotonin levels were observed between the exposure, sha...
Further investigations on the effects of long term exposure are warranted.
Show BibTeX
@article{k_2005_short_term_exposure_to_3069,
author = {Hata K and Yamaguchi H and Tsurita G and Watanabe S and Wake K and Taki M and Ueno S and Nagawa H.},
title = {Short term exposure to 1439 MHz pulsed TDMA field does not alter melatonin synthesis in rats.},
year = {2005},
url = {https://pubmed.ncbi.nlm.nih.gov/15605405/},
}