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REM Sleep Behavior Disorder (RBD) is a sleep disorder characterized by the absence of muscle paralysis that normally occurs during the REM phase of sleep. This absence allows individuals to physically act out their dreams, which are often vivid and disturbing. Common behaviors exhibited during episodes include kicking, punching, and yelling. These actions can be dangerous, potentially leading to injuries for the person with RBD or their bed partner.
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Measuring Neural Mechanisms Underlying Sleep-Dependent Memory Consolidation During Naps in Early Childhood
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Actigraphy-Derived Sleep Is Associated with Eating Behavior Characteristics.

Rocío Barragán1,2,3,4, Faris M Zuraikat1,5, Victoria Tam6

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|April 3, 2021
PubMed
Summary

Poor sleep is linked to obesity, especially in individuals with eating behaviors that promote overeating. These sleep-eating connections may differ between men and women, impacting food intake and weight management strategies.

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Area of Science:

  • Sleep science
  • Nutritional science
  • Obesity research

Background:

  • Poor sleep is a significant factor in obesity, often linked to overconsumption of energy.
  • Eating behaviors influence energy intake and weight changes, potentially mediating the relationship between sleep and obesity risk.
  • The interplay between specific sleep dimensions and eating behavior traits, along with sex-based differences, requires further investigation.

Purpose of the Study:

  • To investigate the relationship between sleep behaviors (duration, timing, quality, regularity) and eating behaviors (dietary restraint, disinhibition, hunger).
  • To explore potential sex differences in the associations between sleep and eating behavior dimensions.
  • To understand how eating behavior traits might modify the link between poor sleep and body mass index (BMI).

Main Methods:

  • Cross-sectional study of 179 adults (aged 20-73 years) with varying BMI.
  • Objective sleep assessment using accelerometry over two weeks.
  • Measurement of eating behavior dimensions using the Three-Factor Eating Questionnaire.

Main Results:

  • Increased wake after sleep onset (WASO), higher sleep fragmentation, and lower sleep efficiency were associated with greater dietary restraint.
  • Dietary restraint appeared to attenuate the link between poor sleep (WASO, fragmentation) and higher BMI.
  • Sex influenced the association between sleep quality and hunger; in men, poor sleep quality (fragmentation, onset latency, efficiency) correlated with a higher tendency towards hunger.

Conclusions:

  • The impact of poor sleep on food intake may be amplified in individuals with eating behaviors predisposing to overeating.
  • The relationship between sleep and eating behaviors exhibits sex-dependent patterns.
  • Future strategies for managing overconsumption related to poor sleep should consider individual eating behavior traits and sex differences.