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Television watching before bedtime can lead to sleep debt
June 08, 2009WESTCHESTER, Ill. - According to a research abstract that will be presented on Monday, June 8, at SLEEP 2009, the 23rd Annual Meeting of the Associated Professional Sleep Societies, television watching may be an important determinant of bedtime, and may contribute to chronic sleep debt.
The study included data from 21,475 people aged 15 or older who completed the American Time Use Survey between the years 2003 and 2006. The study examined the activities participants undertook two hours before and after bed time. It found that television viewing was by far and away the dominant pre-sleep activity, accounting for almost 50% of pre-bed time.
According to the authors of the study, Mathias Basner, MD, MS, MSc, and David F. Dinges, PhD, of the University of Pennsylvania School of Medicine in Philadelphia, they were surprised to find that watching television seemed to be the most important time cue for the beginning of the sleep period, rather than hours past sunset or other more biological factors. So, in fact, TV may make people stay up late, while alarm clocks make them get up early, potentially reducing sleep time below what is physiologically needed.
Sleeping less than 7-8 hours daily impairs alertness and is associated with increased obesity, morbidity and mortality. Despite this fact, up to 40 percent of Americans sleep for less than the recommended time per night.
"Given the relationship of short sleep duration to health risks, there is concern that many Americans are chronically under-sleeping due to lifestyle choices," said Dinges. Dr. Basner added that "According to our results, watching less television in the evening and postponing work start time in the morning appear to be the candidate behavioral changes for achieving additional sleep and reducing chronic sleep debt. While the timing of work may not be flexible, giving up some TV viewing in the evening should be possible to promote adequate sleep."
American Academy of Sleep Medicine
Sleeping less than 7-8 hours daily impairs alertness and is associated with increased obesity, morbidity and mortality. Despite this fact, up to 40 percent of Americans sleep for less than the recommended time per night.
"Given the relationship of short sleep duration to health risks, there is concern that many Americans are chronically under-sleeping due to lifestyle choices," said Dinges. Dr. Basner added that "According to our results, watching less television in the evening and postponing work start time in the morning appear to be the candidate behavioral changes for achieving additional sleep and reducing chronic sleep debt. While the timing of work may not be flexible, giving up some TV viewing in the evening should be possible to promote adequate sleep."
American Academy of Sleep Medicine
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Issues and Action in Childhood Obesity Conference
Media Invitation *** Please see notes for editors *** ‘Issues and Action in Childhood Obesity’ A joint conference of the Association for the Study of Obesity and the University of Bristol Bristol: 17-18 September 2002 Experts on obesity are meeting at a two-day conference (17-18 September 2002) to discuss issues and actions in childhood obesity. This meeting will be held at At-Bristol, Harbourside in Bristol. Childhood obesity has almost doubled since the mid 1980’s and the trend shows no signs of stopping. Overweight or obese children are more likely to become obese adults than their lean friends, increasing the risk of ill health in later life. Obesity in children is the
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