Women who sleep for shorter periods and experience frequent snoring prior to a breast cancer diagnosis may have a poorer prognosis, according to a study published in the Journal of Clinical Sleep Medicine.
The team analyzed the data of 21,230 women who were part of the Women’s Health Initiative — a longitudinal study of postmenopausal women. All women had been diagnosed with primary cancer – cancer that has not spread beyond the primary site – at some point during study follow-up.
Compared with women with breast cancer who rarely snored and slept for 7-8 hours each night, those with breast cancer who snored more than 5 nights a week and slept for less than 6 hours each night were at least two times more likely to die from the disease.
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