The Journal of nervous and mental disease

How Season, Night Eating, and Body Clock Types Relate in Bipolar Disorder, with Sleep Quality as a Link

Updated

Abstract

The prevalence of night eating syndrome (NES) was 17.4% among patients with bipolar disorder (BD).

  • Patients with BD experiencing NES reported poorer sleep quality compared to those without NES.
  • Greater seasonality was observed in BD patients who had NES.
  • Lower scores on the Morningness-Eveningness Questionnaire were associated with NES in BD patients.
  • Chronotype indirectly affected night eating symptoms through sleep quality in BD patients.
  • Direct effects of seasonality on night eating symptoms were identified in bipolar disorder.

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