Effects of the 1900 MHz electromagnetic field emitted from cellular phone on nocturnal melatonin secretion.
Jarupat S, Kawabata A, Tokura H, Borkiewicz A. · 2003
View Original AbstractCell phone radiation at 1900 MHz significantly reduces melatonin production, potentially disrupting sleep and weakening natural cancer defenses.
Plain English Summary
Japanese researchers exposed women to 1900 MHz electromagnetic fields from cellular phones and measured their nighttime melatonin levels in saliva. They found that cell phone EMF exposure significantly reduced melatonin secretion during sleep. This matters because melatonin is your body's primary sleep hormone and a powerful antioxidant that helps prevent cancer and supports immune function.
Why This Matters
This study adds important evidence to our understanding of how cell phone radiation disrupts one of your body's most critical biological processes. Melatonin isn't just about sleep - it's a master hormone that regulates your circadian rhythms, fights oxidative stress, and plays a crucial role in cancer prevention. The 1900 MHz frequency tested here is identical to what many cell phones still use today. What makes this research particularly concerning is that the disruption occurred from relatively brief exposures, yet most people sleep with their phones nearby for 7-8 hours every night. The science demonstrates that EMF exposure doesn't just potentially cause direct cellular damage - it also undermines your body's natural repair and protection mechanisms by suppressing melatonin production.
Exposure Information
Specific exposure levels were not quantified in this study.
Study Details
The aim of this study is to investigate Effects of the 1900 MHz electromagnetic field emitted from cellular phone on nocturnal melatonin secretion.
Exposure to cellular phone EMF caused a significant reduction in salivary melatonin in female human ...
Show BibTeX
@article{s_2003_effects_of_the_1900_2233,
author = {Jarupat S and Kawabata A and Tokura H and Borkiewicz A.},
title = {Effects of the 1900 MHz electromagnetic field emitted from cellular phone on nocturnal melatonin secretion.},
year = {2003},
url = {https://pubmed.ncbi.nlm.nih.gov/12672984/},
}