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From sleep duration to mortality: Implications of meta-analysis and future directions: Editorial

Journal of Sleep Research (Impact Factor: 2.95). 07/2009; 18(2):145-7. DOI: 10.1111/j.1365-2869.2009.00753.x
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Available from: Michael Grandner, Jul 23, 2015
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    • "Sleep complaint and daytime tiredness are associated with obesity Numerous studies have found that short sleep duration is a significant predictor of BMI (Grandner et al. 2010b; Chaput et al. 2009b; Must and Parisi 2009; Grandner and Patel 2009), and the findings from laboratory studies have also supported this (Nedeltcheva et al. 2009). Studies in the sleep apnea literature have found significant relationships between sleep fragmentation (due to respiratory events) and daytime sleepiness and fatigue (Yue et al. 2009). "
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    ABSTRACT: AIM: Previous studies have demonstrated relationships between sleep and both obesity and diabetes. Additionally, exercise may improve sleep and daytime function, in addition to weight and metabolic function. The present study extends these findings by examining how general sleep-related complaints are associated with body mass index (BMI), diabetes diagnosis, and exercise in a large, nationally representative sample. SUBJECT AND METHODS: Participants were respondents to the Behavioral Risk Factor Surveillance System (BRFSS). Sleep complaint (SC) was measured with "Over the last 2 weeks, how many days have you had trouble falling asleep or staying asleep or sleeping too much?" Daytime complaint (DC) was measured with "Over the last 2 weeks, how many days have you felt tired or had little energy?" Responses were dichotomized, with ≥6 days indicating complaint. Covariates included age, race/ethnicity, income, and education. RESULTS: Being overweight was associated with DC in women only. Obesity was significantly associated with SC and DC in women, and DC in men. Diabetes was associated with SC and DC in both genders. Any exercise in the past 30 days did not attenuate any BMI or diabetes relationships, but was independently associated with a decrease in SC and DC in both men and women. CONCLUSION: These results suggest that for both men and women diabetes is a significant predictor of sleep and daytime complaints, and there is a relationship between obesity and sleep and complaints for women to a greater extent than men. Finally, exercise was associated with much fewer sleep and daytime complaints in both genders.
    Community Medicine 10/2011; 19(5):463-474. DOI:10.1007/s10389-011-0398-2 · 1.23 Impact Factor
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    • "The annual number of papers bearing the words Ôsleep durationÕ as part of the title increased from approximately three per year in the 1990s to more than 50 in 2008. These investigated the relationship between self-reported sleep duration and a large number of health-related conditions such as diabetes, cardiovascular morbidity, hypertension, metabolic syndrome and obesity, cancer, psychiatric disorders, neurological disorders and mortality (see a recent meta-analysis on the relationship between mortality and self-reported sleep duration and an accompanying editorial in Gallicchio and Kalesan, 2009; Grandner and Patel, 2009). Generally, both short sleep (<6 h) or long sleep (>8 h) were associated with detrimental health-related effects. "
    Journal of Sleep Research 12/2009; 18(4):385-6. DOI:10.1111/j.1365-2869.2009.00813.x · 2.95 Impact Factor
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    ABSTRACT: Existing data from laboratory studies suggest a number of negative consequences of acute reductions in sleep time. Also, epidemiological data suggest links between shorter self-reported sleep duration and negative health outcomes. These bodies of work are growing, revealing several key points of convergence and opportunities for future exploration. In addition, they begin to highlight possible problems experienced by "short sleepers," who sleep approximately 6h or less per night. While it is likely that this group is heterogeneous, comprised both of individuals with less need for sleep and those not sleeping enough, the laboratory and epidemiological findings point towards directions that can be more fully explored in verified short sleepers. This paper discusses problems associated with the terminology used to describe "short sleep," summarizes laboratory studies exploring neurobehavioral performance, metabolism and obesity, and psychological health and epidemiological studies exploring mortality risk, obesity and metabolism, cardiovascular disease, and general health/psychosocial stress, describes studies of verified short sleepers and explores areas of convergence, laying out possible future directions.
    Sleep Medicine Reviews 11/2009; 14(4):239-47. DOI:10.1016/j.smrv.2009.08.001 · 9.14 Impact Factor
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