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The impact of experimentally shortened sleep on timing of eating occasions in adolescents: A brief report
March 04, 2024 05:03 PM
http://dx.doi.org.byu.idm.oclc.org/10.1111/jsr.13806 Short sleep increases the risk for obesity in adolescents. One potential mechanism relates to when eating occurs in the day. This study investigated the impact of shortened sleep on eating occasion timing in adolescents. Ninety‐three healthy 14‐ to 17‐year‐olds (62% female) completed a within‐subject experimental sleep manipulation, engaging in 5‐night spans of Short Sleep (6.5‐hr sleep opportunity) or Healthy Sleep (9.5‐hr sleep opportunity), with order randomized. During each condition, adolescents completed three 24‐hr diet recall interviews. Repeated‐measure t‐tests assessed the sleep manipulation effect on each adolescent's number of meals, first and last eating occasion (relative to the clock and time since sleep onset/offset), feeding window (timespan from first to last eating), and the midpoint of feeding. The timing of the first eating occasion was similar across conditions, relative to the clock (Short = 08:51, Healthy = 08:52) and to time since waking (Short = 2.0 hr, Healthy = 2.2 hr). The timing of the last eating occasion was later relative to the clock (Short = 20:34, Healthy = 19:39; p < 0.001), resulting in a longer feeding window (Short = 11.7 hr, Healthy = 10.8 hr, p < 0.001) and a later midpoint in the feeding window (Short = 14:41, Healthy = 14:18, p = 0.002). The gap between last eating occasion and sleep onset was larger in Short (4.2 hr) than Healthy Sleep (2.9 hr; p < 0.001), though the last eating occasion was much earlier than when they fell asleep during either condition. Shortened sleep resulted in adolescents eating later and lengthening the daily feeding window. These findings may help explain the link between shortened sleep and increased obesity risk in adolescents.
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A randomized pilot trial of a text messaging intervention for sleep improvement and weight control in emerging adults
By
Chad Jensen
March 04, 2024 04:59 PM
http://dx.doi.org.byu.idm.oclc.org/10.1037/cpp0000477 Text messaging is a promising weight loss intervention modality for emerging adults who are overweight, but few studies exist to guide intervention development. Furthermore, sleep is emerging as a salient intervention target for weight management. This study examines feasibility and acceptability of two text messaging interventions for weight control in emerging adults, one of which includes sleep intervention content. Methods: Forty-three emerging adults who were overweight (BMI ≥ 25 < 30; ages 18–21) were randomized to receive either a text messaging intervention focused on diet and physical activity change, or a text messaging intervention designed to modify sleep behavior plus diet and physical activity. The interventions included motivational interviewing, education around health behaviors, physical activity, and dietary goal setting, as well as sleep goals for those in the sleep condition. All participants self-monitored diet, physical activity, and weight via text message for 3 months; those in the sleep intervention monitored nightly sleep duration. Results: Intervention acceptability and engagement were high for both conditions. In exploratory analyses, we observed that body mass index remained stable across assessments, regardless of condition. Participants in the sleep modification condition showed significantly greater sleep duration from pre- to post-intervention than those in the standard intervention. Conclusions: This study demonstrates that a weight loss intervention delivered by text messaging, including components designed to improve sleep, is acceptable and feasible for emerging adults who are overweight, and that extended sleep duration may be a benefit of the sleep modification intervention.
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Altered neuronal response to visual food stimuli in adolescents undergoing chronic sleep restriction
March 04, 2024 04:52 PM
https://doi.org/10.1093/sleep/zsad036 Poor sleep in adolescents can increase the risk of obesity, possibly due to changes in dietary patterns. Prior neuroimaging evidence, mostly in adults, suggests that lacking sleep results in increased response to food cues in reward-processing brain regions. Needed is a clarification of the mechanisms by which food reward processing is altered by the kind of chronic sleep restriction (SR) typically experienced by adolescents. This study aimed to elucidate the impact of sleep duration on response to visual food stimuli in healthy adolescents using functional neuroimaging, hypothesizing increased reward processing response after SR compared to a well-rested condition.
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Multimodal assessment of circadian sleep health in predicting mental health outcomes in adolescents
March 04, 2024 04:48 PM
https://doi.org/10.3389/frsle.2023.1177878 Aspects of circadian sleep health including circadian alignment, circadian phase, or chronotype may be related to mental health outcomes in adolescents. Using novel and robust data collection methods, this study explored the relationship between adolescents' circadian sleep health and traits related to depression, anxiety, stress, and emotional regulation.
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Early adverse childhood experiences and adolescent sleep outcomes
March 04, 2024 04:45 PM
Background: Sleep is critical for physical, mental, and emotional health. This may be particularly true for adolescents experiencing rapid physiological changes. Relatively little is known about how adverse childhood experiences (ACEs) are implicated in adolescent experiences with sleep.
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High levels of sleep disturbance across early childhood increases cardiometabolic disease risk index in early adolescence: longitudinal sleep analysis using the Health Outcomes and Measures of the Environment study Get access Arrow
March 04, 2024 04:38 PM
https://doi.org/10.1093/sleep/zsad318 This study examines the impact of sleep duration, bedtime, and sleep disturbance during early childhood on the risk of cardiometabolic disorder (CMD) in early adolescence.
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