دانلود رایگان مقاله بررسی رابطه بین نگرانی و خواب

Abstract

There is growing evidence suggesting that worry and sleep are intimately linked. However, the relationship between these two phenomena over the course of a day remains largely unstudied. It is possible that (a) worry predicts sleep disturbance that night, (b) sleep disturbance predicts worry the following day, or (c) there is a bidirectional relationship between worry and sleep disturbance. The present study examined the daily relationship between worry (both during the day and immediately prior to sleep onset) and sleep in 50 high trait worriers who were randomly assigned to one of two interventions aimed at reducing worry as part of a larger study. A daily process approach was utilized wherein participants completed daily reports of sleep and worry during a 7-day baseline period followed by a 14-day intervention period. Results of repeated measures multilevel modeling analyses indicated that worry experienced on a particular day predicted increased sleep disturbance that night during both the baseline and intervention weeks. However, there was no evidence of a bidirectional relationship as sleep characteristics did not predict worry the following day. Additionally, the type of intervention that participants engaged in did not affect the daily relationship between worry and sleep. Results of the present study are consistent with the cognitive model of insomnia (Harvey, 2002) and highlight the importance of addressing and treating worry among individuals with high trait worry and sleep disturbance.

Conclusion

In spite of these limitations, our investigation has several strengths. First, this study is among the first to examine the relationship between worry and sleep using a daily process approach and multilevel modeling techniques. Second, ecological momentary assessment was used to assess worry and sleep measures in the moment. This approach reduces the time elapsed between an experience and an account of that experience, potentially yielding more accurate measures of individuals’ experiences. Taken together, these strengths are noteworthy refinements over prior research. In conclusion, we demonstrated that in a sample of individuals with high trait worry who experienced moderate sleep disturbance, worry predicts sleep characteristics that night, but sleep does not predict worry symptoms the following day. Additionally, engaging in an intervention to reduce worry did not change the relationship between worry and sleep. Results from this study underscore the importance of identifying and treating worry in individuals with comorbid worry and sleep difficulties.