Research links stroke risk to sleep

Doctors from the University of North Carolina examined the sleep habits of 90,000 post-menopausal women.

They found that women who slept more than nine hours per night had a 60 percent higher risk for the most common form of stroke.

Women who slept less than six hours per night had a 14 percent increased risk.

Researchers said it is possible the two factors have a common cause; they said hormonal differences that influence sleep patterns could also determine the risk of certain diseases, like stroke.

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