Study: Women Who Tend To Be 'Night Owls' At Greater Risk Of Breast Cancer
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PHILADELPHIA (CBS) – New research suggests women who tend to be "night owls" are at greater risk for breast cancer.
That's according to European researchers looking at International Genetic Data.
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They say women who tend to be "morning people" have about a 40 percent lower risk of breast cancer.
Scientists also found a higher breast cancer risk in women who sleep longer than eight hours at night.
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