Abstract
There is a bidirectional relationship between poor sleep and both mood- and anxiety-related disorders, which are among leading global health concerns. Additionally, both disordered sleep and these psychiatric disorders appear to be independently associated with altered autonomic nervous system (ANS) function. We hypothesise that ANS dysregulation during sleep may explain part of the relationship between poor sleep and mood- and anxiety-related disorders. Heart rate variability (HRV) is a frequently used marker of ANS function and gives an indication of ANS input to the heart - in particular, of the relative contributions of sympathetic and parasympathetic activity. A systematic review of PubMed, Scopus and Web of Science yielded 41 studies dealing with sleep, mood- and anxiety-related disorders and sleep-related HRV. Hyperarousal during sleep, reflecting a predominance of sympathetic activation and indicative of ANS dysregulation, may be an important factor in the association between poor sleep and mood-related disorders. Longitudinal studies and mediation analyses are necessary to further understand the potential mediating role of ANS dysregulation on the relationship between poor sleep and mood- and anxiety-related disorders.
Original language | English |
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Pages (from-to) | 106-117 |
Number of pages | 12 |
Journal | Sleep Medicine |
Volume | 101 |
Early online date | 25 Oct 2022 |
DOIs | |
Publication status | Published - Jan 2023 |
Bibliographical note
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This document is the author’s post-print version, incorporating any revisions agreed during the peer-review process. Some differences between the published version and this version may remain and you are advised to consult the published version if you wish to cite from it.
Funder
This work is based on research funded by the National Research Foundation of South Africa (Grant no. 122508).Keywords
- Anxiety
- Autonomic nervous system
- Depression
- Heart rate variability (HRV)
- Insomnia
- PTSD
- Sleep
ASJC Scopus subject areas
- General Medicine