Paper Summary:

The paper reveals that shift work, accompanied by irregular sleeping patterns in which the individual is unable to get enough sleep, results in occupational health and safety hazards and increases the individual's chances of depression and even cancer. The paper explores how lighting in the work place can reduce these negative effects experienced by shift workers while promoting workplace occupational health and safety. The paper focuses on two products available in today's market that have been shown to be effective in re-regulation of the circadian rhythm of workers, namely, the Sunnex Biotechnologies Greenlight System and the Litebook System.

Outline:
Objective
Introduction
Disadvantages of Shift Work
Sunnex Biotechnologies Greenlight System
Litebook System
Summary and Conclusion

From the Paper:

"Shift work has been demonstrated in scientific research to negatively affect the health of workers and even been noted to be a factor in women developing breast cancer. Shift work is a factor in many cases of depression and other health complications and diseases as well. The eye of the human being is sensitive to light in a variation of ranges based upon the wavelength of the light. Light-measurement considers the sensitivity curve of the eye, or the 'photonic response cycle' using the measurement-unit known as a 'lux'. Some light in this sensitivity range is brighter than other light. The following chart demonstrates that bright light of a yellow light than that of a deep blue light "even though their actual output may be the same.' (2001) "

Sample of Sources Used:

• Bjorvatn, Bjoern; Kecklund, Goeran; and Aekerstedt, Torbjoern (2001) Bright Light Facilitates Circad. Adapt. Among Night Workers at An Oil Platform . Litebook. Online available at: http://www.litebook.com/research/displayresearch.asp?id=67&type=t
• Czeisler, Charles A. (1990) Exposure to Bright Light and Dark to Treat Physio Maladaptation to Night Work. The New England Journal of Medicine. 1 Jan 1990. LITEBOOK Online available at: http://www.litebook.com/research/displayresearch.asp?id=35&type=t
• Harder, Ben (2006) Bright Lights, Big Cancer: Melatonin-Depleted Blood Spurs Tumor Growth. Science Daily Vol. 168, No. 1. 7 Jan 2006 online available at: http://www.sciencenews.org/articles/20060107/bob9.asp
• Light Management for Night Shift Adaptation (2008) The GreenLIGHT System is the Optimal Tool to Enhance Nightwork Performance. Sunnex Biotechnologies. Online available at: http://www.sunnexbiotech.com/shiftwork/shift%20work.html
• Monk TH: Advantages and disadvantages of rapidly rotating shift schedules - A circadian viewpoint. Human Factors 1986;28(5):553-557.

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