Hope you've had a good night sleep and that you haven't been staying up late surfing on the internet or emailing. On average most adults need 7-8 hours of sleep. According to a recent study from London those of us who got too little or too much sleep are at a higher risk of death due to both cardiovascular and non-cardiovascular causes.
In this study, 10,000 participants between the ages of 30-55 were evaluated initially between 1985-1988 and again during 1992-1993. Those who had cut their sleeping from 7 hours to 5 hours or less faced a 1.7 fold increased risk in mortality from all causes, and twice the increased risk of death from cardiovascular causes. Those who slept more than 8 hours also had a higher risk of mortality from general causes but not from cardiovascular causes.
Photo: courtesy of University of Vermont.