Overview
The parasympathetic nervous system is one of the two principal divisions of the autonomic nervous system, complementing the sympathetic division to maintain involuntary physiological homeostasis. Often characterised by its role in rest, digestion, and recovery, it promotes energy conservation by slowing the heart rate, stimulating gastrointestinal motility and secretion, constricting the pupils, and supporting glandular and reproductive functions. Anatomically it is a craniosacral system: its preganglionic fibres emerge from several cranial nerves, most importantly the vagus nerve, and from the sacral spinal cord, synapsing in ganglia close to or within the target organs, where the neurotransmitter acetylcholine acts on muscarinic receptors. Vagal control of the heart is a major influence on cardiac rhythm, and the balance between parasympathetic and sympathetic activity is reflected in heart rate variability, a widely used non-invasive index of autonomic regulation. Parasympathetic tone interacts with the baroreflex in controlling blood pressure and is modulated by behaviours and interventions that affect autonomic state, including slow, controlled breathing and relaxation practices, which can increase vagal activity and shift the body toward a calmer physiological profile. Disturbance of parasympathetic function contributes to cardiovascular, gastrointestinal, and stress-related conditions. Research examines vagal regulation of the heart, measures of autonomic balance such as heart rate variability, and the physiological effects of breathing and relaxation on parasympathetic activity.
Research published in this journal
7 peer-reviewed articles, ranked by relevance. Each links to its DOI.
A Comparative Study of the Impact of Himalayan Singing Bowls and Supine Silence on Stress Index and Heart Rate Variability
Impact of Himalayan Singing Bowls Meditation Session on Mood and Heart Rate Variability
Pain between Psyche and Soma in Uro-Andrology
A Randomized Controlled Biofeedback Intervention Study On Heart Rate Variability In Unemployed Subjects
The Effects of Physical Activity on Sleep among Adolescents and Adults: A Narrative Review
How this research is being cited
The 7 articles above have been cited 80 times in the scholarly literature. Citation data via OpenAlex and Crossref, updated Jun 2026.
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2026 · Frontiers in Cognition
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2026 · BMC Public Health
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2026 · Journal of Affective Disorders
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2025 · Integrative Medicine Research
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Yiqing Cai et al. · 2025 · Integrative Medicine Research
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2025 · Journal of PeriAnesthesia Nursing
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2025 · Healthcare
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Fei-Wen Lin et al. · 2025 · Healthcare
A sample of recent works citing this journal's research on Parasympathetic Nervous System, linking to each citing work.