Female workers on graveyard shifts, usually working from six in the evening to six in the morning, are at a higher risk of developing breast cancer compared to their daytime counterparts, says a US Medical study.
Findings of a study from the Fred Hutchinson Cancer Research Center, based in Seattle, Washington said "Women who work the graveyard shift may face an up to 60 percent increased risk of breast cancer compared to those who never worked during night shifts."
The study is based on the theory that "night-time sleep deprivation or exposure to light at night somehow interrupts melatonin production, which in turn stimulates the ovaries to kick out extra estrogen, a known hormonal promoter of breast cancer."
Published by Teresita C. Tayanes on October 5, 2006 10:02 PM
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