Seven Hours Is Enough
Women who sleep 10 hours or more may have a much greater risk of stroke than women who sleep seven hours per night, say Harvard School of Public Health researchers. The 20-year study followed nearly 70,000 women. Findings reveal that women sleeping 10 hours or more had a 63 percent increased risk of stroke, but that estimate dropped to a 55 percent increased risk after controlling for history of diabetes, body mass index (BMI) and hypertension. Results indicate a similar risk for ischemic stroke. Researchers found that women sleeping seven hours per night had the lowest risk for stroke. During the study that began in 1986, 2,303 strokes were recorded.