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Insufficient Sleep and Sleep Deprivation01:13

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Association Between Sleep Quality and Cognitive Symptoms in Patients with Major Depressive Disorder
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Published on: April 26, 2024

Loneliness impairs daytime functioning but not sleep duration.

Louise C Hawkley1, Kristopher J Preacher, John T Cacioppo

  • 1Department of Psychology and Center for Cognitive and Social Neuroscience, University of Chicago, Chicago, IL 60637, USA. hawkley@uchicago.edu

Health Psychology : Official Journal of the Division of Health Psychology, American Psychological Association
|March 17, 2010
PubMed
Summary

Daily loneliness predicts subsequent daytime dysfunction, and vice versa, impacting sleep quality. This association persists even with adequate sleep duration, highlighting social isolation

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Area of Science:

  • Gerontology
  • Sleep Science
  • Social Psychology

Background:

  • Loneliness is a growing concern in aging populations.
  • Poor sleep quality is linked to various negative health outcomes.
  • The relationship between daily loneliness and sleep quality requires further investigation.

Purpose of the Study:

  • To investigate the prospective association between daily feelings of loneliness and subsequent daytime dysfunction.
  • To explore the reciprocal relationship between loneliness and daytime dysfunction.
  • To determine if this association is independent of sleep duration.

Main Methods:

  • A population-based sample of 215 adults completed end-of-day diaries for three consecutive days.
  • Data collected included sleep duration, daytime dysfunction (fatigue, low energy, sleepiness), and loneliness.
  • Autoregressive cross-lagged panel models were employed to analyze reciprocal associations.

Main Results:

  • Daily loneliness significantly predicted subsequent daytime dysfunction (B = 0.16, p < .05).
  • Daytime dysfunction also predicted subsequent loneliness (B = 0.07, p < .05).
  • The association between loneliness and daytime dysfunction remained significant even when controlling for depressed affect.

Conclusions:

  • Loneliness is prospectively associated with subsequent daytime dysfunction, indicating poorer sleep quality.
  • The impact of loneliness on daytime dysfunction is independent of sleep duration.
  • Social isolation may reduce the restorative benefits of sleep.