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AAOHN J. 2011 Jan;59(1):37-45; quiz 46. doi: 10.3928/08910162-20101216-01. Epub 2010 Dec 23.

Shift work, light at night, and the risk of breast cancer.

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  • 1Office of Community-Based Education and Research, Dartmouth Medical School, Lebanon, NH 03766, USA.


Studies of the effect of shift work have identified several negative health outcomes, most notably breast cancer. Disruption of circadian rhythm by exposure to light at night has been identified as the mechanism likely responsible for this outcome. This article recommends that health care institutions work with occupational health nurses to develop and implement hazard communication and policies concerning shift work, exposure to light at night, and increased risk for negative health outcomes, particularly breast cancer.

2011, SLACK Incorporated.

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