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The contribution of worry to insomnia
The British Journal of Clinical Psychology
|May 1, 1994
Summary
Cognitive activity significantly impacts sleep, with worry playing a key role in insomnia. Worried individuals experience a wider range of sleep-interfering thoughts compared to those with insomnia but no worry.
Area of Science:
- Cognitive Psychology
- Sleep Science
- Clinical Psychology
Background:
- Cognitive activity is increasingly recognized as a factor that can interfere with sleep.
- A close relationship between worry and insomnia has been suggested by recent research.
Purpose of the Study:
- To investigate the detailed relationship between worry and insomnia.
- To explore the content of cognitions that interfere with sleep in individuals with varying levels of worry and insomnia.
Main Methods:
- A 2x2 design was employed to categorize participants based on worry and insomnia levels.
- The Sleep Disturbance Questionnaire and a newly developed thought content checklist were used to assess sleep-interfering cognitions.
Main Results:
- A distinction between sleep-related and other types of thoughts was supported.
- Worried insomniacs reported a broad spectrum of sleep-interfering thoughts.
- Non-worried insomniacs primarily focused on sleep-related thoughts when unable to sleep.
Conclusions:
- Cognitive content differs significantly between worried and non-worried insomniacs.
- Understanding the nature of thoughts is crucial for addressing insomnia, particularly in individuals who worry.