Key result
Altered heart rate variability indicates increased sympathetic activity and autonomic dysregulation in individuals with insomnia, highlighting a bidirectional relationship between sleep quality and autonomic function.
Why the study?
Insomnia affects up to 20% of the general population, emphasizing the need to understand its extensive impact and the link between autonomic nervous system modulation assessed by heart rate variability and sleep quality.
Population
41 relevant titles from 1985 to 2024
Design
Narrative review
Authors
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Insomnia may signal sympathetic overdrive meriting clinical vigilance; leaves open whether autonomic modulation improves sleep or CV outcomes.
Heart rate variability serves as a potential non-invasive indicator of autonomic state variations during sleep disturbances, highlighting a bidirectional relationship between insomnia and autonomic nervous system function.
Kapica et al. (2024) conducted a review in Insomnia and sleep quality. Heart rate variability was evaluated. Altered heart rate variability indicates increased sympathetic activity and autonomic dysregulation in individuals with insomnia, highlighting a bidirectional relationship between sleep quality and autonomic function.
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