Scientists suspect that overnight work is dangerous because it disrupts the circadian rhythm, and is a potential cause of breast and prostate cancer.

References and Resources
Stevens RG, Blask DE, Brainard GC, et al. Meeting report: the role of environmental lighting and circadian disruption in cancer and other diseases. Environ Health Perspect. Sep. 2007. 115(9):1357-62.
Click Here to view article.

Zhu Y, Zheng T, Stevens RG, et al. Does “Clock” Matter in Prostate Cancer?. Cancer Epidemiology Biomarkers & Prevention. Jan 2006. Vol. 15; 3-5.
Click Here to view article.

Stevens RG. Artificial lighting in the industrialized world: circadian disruption and breast cancer. Cancer Causes Control. May 2006. 17(4):501-7.
Click Here to view abstract.

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