Third Shift Women At Greater Risk For Breast Cancer

By Michael Klopfenstein

July 2, 2013 Updated Jul 2, 2013 at 6:56 PM EDT

CANADA. (www.incnow.tv) - Women who spend most of their career working the night shift may have an increased risk for breast cancer.

Researchers in Canada studied over one thousand women with breast cancer and compared them to women the same age who did not have the disease.

They found those who had worked the night shift for 30 years or more were two times more likely to develop breast cancer.

Outside studies have suggested the sleep hormone melatonin may be affected by shift work and that is what increases the risk for breast cancer.

However, sleep disturbances and upset body rhythms may also play a role.

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