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Human sleep in 60 Hz magnetic fields
Author(s) -
Graham Charles,
Cook Mary R.
Publication year - 1999
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(1999)20:5<277::aid-bem3>3.0.co;2-u
Subject(s) - morning , sleep (system call) , audiology , sleep stages , medicine , electroencephalography , psychology , feeling , bioelectromagnetics , sleep disorder , polysomnography , insomnia , psychiatry , magnetic field , physics , social psychology , computer science , operating system , quantum mechanics
This report describes a double‐blind, laboratory‐based study of 24 healthy young men in which sufficient data were collected to examine the effects of intermittent versus continuous exposure to a 60 Hz, 28.3 μT magnetic field on multiple EEG measures of night sleep. Intermittent, but not continuous or sham exposure, was associated with less total sleep time, reduced sleep efficiency, increased time in Stage II sleep, and decreased REM sleep. Subjects exposed intermittently to the field also reported sleeping less well and feeling less rested in the morning than subjects in the other two groups. All observed effects were significant at P ≤ .04 or less. The public health relevance of these results cannot be assessed as yet. Poor sleep quality, however, can have a detrimental influence on worker safety and performance, and has been associated with decrements in memory and learning processes. Additional research appears warranted. Bioelectromagnetics 20:277–283, 1999. © 1999 Wiley‐Liss, Inc.