Researchers say it's possible the hormonal differences that influence sleep habits also alter our risk for certain diseases.
Research links sleep to stroke risk in women
The study published in the journal of the American Heart Association found women who habitually slept more than 9 hours per night had a 60 percent higher risk of the most common form of stroke caused by blocked blood vessels in the brain.
Women who slept less than six hours per night also had a 14 percent increased risk.