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Human melatonin during continuous magnetic field exposure
Author(s) -
Graham Charles,
Cook Mary R.,
Riffle Donald W.
Publication year - 1997
Publication title -
bioelectromagnetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.435
H-Index - 81
eISSN - 1521-186X
pISSN - 0197-8462
DOI - 10.1002/(sici)1521-186x(1997)18:2<166::aid-bem9>3.0.co;2-0
Subject(s) - melatonin , bioelectromagnetics , nocturnal , circadian rhythm , medicine , endocrinology , magnetic field , physics , quantum mechanics
This report describes the third in a series of double‐blind, laboratory‐based studies that were aimed at determining the effects of nocturnal exposure to power frequency magnetic fields on blood levels of melatonin in human volunteers. Our two earlier studies evaluated effects on melatonin of intermittent exposure to 60 Hz circularly polarized magnetic fields at 10 and 200 mG. No overall effects on melatonin levels were found. In the present study, men were exposed continuously rather than intermittently through the night to the same 200 mG magnetic field condition that was used previously; again, no overall effects on melatonin levels were found. We conclude that the intermittent and continuous exposure conditions used in our laboratory to date are not effective in altering nocturnal blood levels of melatonin in human volunteers. Bioelectromagnetics 18:166–171, 1997. © 1997 Wiley‐Liss, Inc.