Night Shift

Night shift work is tied to breast cancer

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A new study identifies a link between night shift work and risk of breast cancer, according to Canadian researchers. In an investigation of 1,100 women with breast cancer and more than 1,100 without it, Queen's Cancer Research Institute researchers found that those who had worked for more than 30 years on a night shift had a higher rate of breast cancer.

Shift workers at higher risk for stroke, heart attack, study finds

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Shift workers, especially those working overnight, are at a higher risk for having a stroke or heart attack, an analysis finds.