Objective: The recent obesity epidemic has been accompanied by a parallel growth in chronic sleep deprivation. Physiologic studies suggest sleep deprivation may influence weight through effects on appetite, physical activity, and/or thermoregulation. This work reviews the literature regarding short sleep duration as an independent risk factor for obesity and weight gain.

Short sleep duration and weight gain : a systematic review

Sleep is increasingly recognized as an important lifestyle contributor to health. However, this has not always been the case, and an increasing number of Americans choose to curtail sleep in favor of other social, leisure, or work-related activities. This has resulted in a decline in average sleep duration over time. Sleep duration, mostly short sleep, and sleep disorders have emerged as being related to adverse cardiometabolic risk, including obesity, hypertension, type 2 diabetes mellitus, and cardiovascular disease. Here, we review the evidence relating sleep duration and sleep disorders to cardiometabolic risk and call for health organizations to include evidence-based sleep recommendations in their guidelines for optimal health.

Sleep Duration and Quality: Impact on Lifestyle Behaviors and Cardiometabolic Health: A Scientific Statement From the American Heart Association

Sleep, Health, and Society.

Background Insomnia is of major public health importance. While cognitive behavioral therapy is beneficial, in-person treatment is often unavailable. We assessed the effectiveness of internet-delivered cognitive behavioral therapy for insomnia. Objectives The primary objectives were to determine whether online cognitive behavioral therapy for insomnia could improve sleep efficiency and reduce the severity of insomnia in adults. Secondary outcomes included sleep quality, total sleep time, time in bed, sleep onset latency, wake time after sleep onset, and number of nocturnal awakenings. Data sources We searched PubMed/MEDLINE, the Cumulative Index to Nursing and Allied Health Literature, PsycInfo, Cochrane Library, Embase, and the Web of Science for randomized trials. Methods Studies were eligible if they were randomized controlled trials in adults that reported application of cognitive behavioral therapy for insomnia via internet delivery. Mean differences in improvement in sleep measures were calculated using the Hartung-Knapp-Sidik-Jonkman method for random effects meta-analysis. Results We found 15 trials, all utilizing a pretest-posttest randomized control group design. Sleep efficiency was 72% at baseline and improved by 7.2% (95% CI: 5.1%, 9.3%; p Conclusion In conclusion, internet-delivered cognitive behavioral therapy is effective in improving sleep in adults with insomnia. Efforts should be made to educate the public and expand access to this therapy. Registration Number, Prospero: CRD42015017622.

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Internet-Delivered Cognitive Behavioral Therapy to Treat Insomnia: A Systematic Review and Meta-Analysis

OBJECTIVE. This was a systematic evidence review for the US Preventive Services Task Force, intended to synthesize the published evidence regarding the effectiveness of selecting, testing, and managing children and adolescents with dyslipidemia in the course of routine primary care. METHODS. Literature searches were performed to identify published articles that addressed 10 key questions. The review focused on screening relevant to primary care of children without previously identified dyslipidemias, but included treatment trials of children with dyslipidemia because some drugs have only been tested in that population. RESULTS. Normal values for lipids for children and adolescents are defined according to population levels (percentiles). Age, gender, and racial differences and temporal trends may alter these statistical cut points. Approximately 40% to 55% of children with elevated total cholesterol and low-density lipoprotein levels will continue to have elevated lipid levels on follow-up. Current screening recommendations based on family history will fail to detect substantial numbers (30%–60%) of children with elevated lipid levels. Drug treatment for dyslipidemia in children has been studied and shown to be effective only for suspected or proven familial monogenic dyslipidemias. Intensive dietary counseling and follow-up can result in improvements in lipid levels, but these results have not been sustained after the cessation of the intervention. The few trials of exercise are of fair-to-poor quality and show little or no improvements in lipid levels for children without monogenic dyslipidemias. Although reported adverse effects were not serious, studies were generally small and not of sufficient duration to determine long-term effects of either short or extended use. CONCLUSIONS. Several key issues about screening and treatment of dyslipidemia in children and adolescents could not be addressed because of lack of studies, including effectiveness of screening on adult coronary heart disease or lipid outcomes, optimal ages and intervals for screening children, or effects of treatment of childhood lipid levels on adult coronary heart disease outcomes.

Screening and treatment for lipid disorders in children and adolescents: systematic evidence review for the US Preventive Services Task Force.

Insufficient sleep is associated with cardiometabolic disease and poor health. However, few studies have assessed its determinants in a nationally representative sample. Data from the 2009 behavioral risk factor surveillance system were used (N = 323,047 adults). Insufficient sleep was assessed as insufficient rest/sleep over 30 days. This was evaluated relative to sociodemographics (age, sex, race/ethnicity, marital status, region), socioeconomics (education, income, employment, insurance), health behaviors (diet, exercise, smoking, alcohol), and health/functioning (emotional support, BMI, mental/physical health). Overall, insufficient sleep was associated with being female, White or Black/African-American, unemployed, without health insurance, and not married; decreased age, income, education, physical activity; worse diet and overall health; and increased household size, alcohol, and smoking. These factors should be considered as risk factors for insufficient sleep.

Social and Behavioral Determinants of Perceived Insufficient Sleep.

Background and purpose Little information relating to cholesterol levels and screening for hypercholesterolemia in inner-city children exists. For this study, given the disrupted family backgrounds of many of our patients and the unreliability of family histories, our hypothesis was that in comparison with other samples, family history of coronary heart disease would be a poor screening tool for the identification of children with elevations in total serum cholesterol (TSC). Subjects and methods During 15 months, more than 400 pediatric outpatients, 2 through 14 years old, were screened for a family history of atherosclerotic disease. These children were attending a clinic serving a disadvantaged black and Hispanic population at Kings County Hospital Center. Nonfasting TSC levels were measured in 300 children. Positive risk for coronary heart disease was determined by the presence of a family history of coronary heart disease (defined as angina, stroke, or myocardial infarction in any parent or grandparent) at less than 55 years age. Results The mean TSC level was 4.27 mmol/L SD +/- 0.85) (165.0 mg/dL [SD +/- 32.8]). The 29.4% of this population with a history suggestive of high risk for hypercholesterolemia had a mean TSC of 4.48 mmol/L (SD +/- 0.971) (173.2 mg/dL [SD +/- 37.5]), and those with no risk history had a mean TSC of 4.18 mmol/L (SD +/- 0.750) (161.4 mg/dL [SD +/- 29.9]) (P or = 4.66 mmol/L [180 mg/dL]). Conclusions This population's mean TSC level did not differ (P > .10) from those obtained in multiple large studies of average North American populations, and the predictive value and sensitivity of family history as a screening tool was comparable, although the prevalence of a positive family history was greater. The findings may be due to a greater prevalence of coronary artery disease at a young age in these families. In this population, a positive risk history is an important indicator for further evaluation of these children.

Renee Murray-Bachmann

Papers

Social and Behavioral Determinants of Perceived Insufficient Sleep.

Family History of Coronary Artery Disease and Cholesterol: Screening Children in a Disadvantaged Inner-City Population