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Document ID (ISN)101843
CIS number 03-947
ISSN - Serial title 0019-8366 - Industrial Health
Year 2002
Convention or series no.
Author(s) Horowitz T.S., Tanigawa T.
Title Circadian-based new technologies for night workers
Bibliographic information July 2002, Vol.40, No.3, p.223-236. Illus. 104 ref.
Abstract Night work is becoming increasingly common. Unfortunately, humans are physiologically unsuited to inverted schedules, leading to negative consequences for shift workers, employers and society. The circadian and homeostatic processes which govern sleepiness and alertness are improperly aligned for night workers. This article reviews a number of laboratory studies designed to treat maladaptation to night work by shifting the circadian clock with light, exercise or melatonin. There is substantial evidence that bright light treatments can successfully overcome the circadian misalignments associated with night work. The evidence for the efficiency of other synchronizers such as exercise and exogenous melatonin is equivocal. Nevertheless, the highlighting of scientific understanding of the nature of the problem has generated a promising range of options for shift workers.
Descriptors (primary) illumination levels; night work; hormone therapy; circadian rhythm; physical training
Descriptors (secondary) literature survey; lighting; hormone secretion; sleep disturbances; adaptation of man to work
Document type D - Periodical articles
Country / State or ProvinceJapan; USA
Subject(s) Ergonomics and work organization
Broad subject area(s) Physiology, ergonomics
Browse category(ies) Non-ionizing radiation