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Night Shift Might Boost Women's Breast Cancer Risk, Journal of Occupational and Environmental Medicine Reveals  
5/29/2012 7:13:48 AM

Women who work night shifts are at higher risk of breast cancer, warn researchers. Their findings suggest working at night increases the chances of the disease by 40 per cent. Women working more than two night shifts a week have double the risk of those on day shifts, says a report from scientists, while night workers who also describe themselves as ‘morning people’ or ‘larks’ have a stronger risk than those who say they are ‘night owls’.