(WVUE/FOX) - People who sleep more than eight hours or less than six hours each night may be increasing their risk of stroke.
British researchers studied nearly 10,000 people with an average age in their 60s and followed them for 10 years. Nearly 1,000 of the study's sleepers slept more than eight hours a night. That group had a 46 percent higher risk of stroke.
They also discovered people who slept less than six hours per night had an 18 percent increased risk of stroke. Short sleep duration has already been linked to obesity, diabetes, and high blood pressure, which are all stroke risk factors.
But the association between more sleep and stroke is a relatively new finding. Experts say if you're sleeping too much or too little, talk to your doctor about ways to get an optimal amount of sleep each night.
Findings appear in the journal "Neurology."