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Association of functioning and quality of life with objective and subjective measures of sleep and biological rhythms in major depressive and bipolar disorder
How Sleep Patterns and Body Rhythms Relate to Functioning and Quality of Life in Depression and Bipolar Disorder
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Abstract
111 participants showed that mood disorders are associated with significant disruptions in biological rhythms and sleep patterns.
- Mood disorder groups reported worse subjective sleep quality and had greater biological rhythm disruption compared to healthy controls.
- Participants with bipolar disorder experienced longer total sleep time and had lower levels of 6-sulfatoxymelatonin than healthy controls.
- Those with major depressive disorder exhibited longer sleep onset latency and a higher likelihood of transitioning from rest to activity during the day.
- All mood disorder groups displayed later mean timing of light exposure compared to healthy participants.
- Analysis indicated that biological rhythm scores, nighttime activity, and daytime activity transitions explained significant variance in quality of life and functioning.
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