Research links stroke risk to sleep

July 17, 2008 3:19:50 PM PDT
New research is suggesting a link between a woman's risk of stroke and the amount of sleep she gets.

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.