Reiki and the Relaxation Response: Understanding Reiki Through the Lens of the Nervous System
- Kathy Morelli
- 6 hours ago
- 3 min read
Many people report feeling calmer, more grounded, and deeply relaxed during Reiki sessions. The mechanisms involved are not as of yet known, and researchers continue to investigate. However, a growing body of research suggests that Reiki supports relaxation, reduces stress, and improves quality of life measures.
What Defines Quality Of Life (QOL)?
Quality of life (QOL) is a complex concept that includes an individual's general health, comfort, and capacity to participate in and enjoy life. Within healthcare, QOL is considered multidimensional, involving emotional, physical, material, and social well-being.
An Opportunity to Reset With Your Relaxation Response
In your busy life, Reiki can function as a scheduled self-care opportunity for you to experience stillness, safety, mindful attention, nervous system regulation and time to reflect. Taking time for self-care helps reduce chronic busy-ness and nervous system activation. Reiki sessions create a dedicated space to slow down, rest, and experience a supportive presence.
First identified by Dr. Herbert Benson in the 1970's, the relaxation response is a physiological state of profound relaxation marked by a slower heart rate, reduced blood pressure, and decreased muscle tension. This response is a natural function of the parasympathetic nervous system, triggered by rest, deep diaphragmatic breathing, progressive muscle relaxation, and mindful focus. The parasympathetic response serves as a counterbalance to the activity of the sympathetic nervous system, which is responsible for the body's stress response.
When the relaxation response is activated, the body shifts away from a state of vigilance and mobilization toward one of restoration, digestion, healing, and recovery.
Many studies have demonstrated that Reiki may promote the shift to a relaxation response, marked by increased parasympathetic activity. Research indicates reductions in heart rate and blood pressure, as well as improvements in heart rate variability (HRV), a measure associated with resilience, adaptability, and the healthy functioning of the autonomic nervous system. Furthermore, participants in the studies report experiencing deep relaxation, peace, and well-being.
Researchers have proposed several possible explanations for these effects. The calming environment, focused attention, therapeutic presence, gentle touch, and expectancy effects may all contribute to the experience.
While the exact mechanisms remain an active area of investigation, the measurable outcomes and the participants' reported experience consistently point toward increased relaxation and reduced physiological stress.
What Recent Research Says About Reiki and Quality of Life
A 2025 meta-analysis published in Systematic Reviews reviewed randomized controlled trials involving 661 participants and found that Reiki therapy was associated with significant improvements in quality of life.
Positive effects were observed among cancer patients, individuals living with chronic illness, surgical patients, and healthy adults.
The strongest outcomes were found when Reiki was offered through multiple sessions over time.
Researchers concluded that Reiki appears to be a safe complementary intervention that may help reduce stress, anxiety, pain, and fatigue while supporting overall well-being.
From a Polyvagal Theory perspective, Reiki may help create conditions that support a shift toward greater autonomic regulation.
Experiences of safety, stillness, compassionate presence, and social connection are all factors known to support nervous system flexibility.
While Reiki research is still evolving, these frameworks provide useful ways of understanding how relaxation-based interventions may influence emotional and physiological well-being.
Conclusion
While researchers continue to investigate the mechanisms underlying Reiki, the current body of research suggests that Reiki may support relaxation, reduce stress, and improve quality of life for a variety of populations.
Studies examining heart rate variability, autonomic regulation, anxiety, pain, and well-being point toward measurable psychophysiological effects that are consistent with activation of the relaxation response.
From a somatic perspective, Reiki may be understood as a scheduled, structured self-care opportunity to slow down, cultivate mindful awareness, and experience a sense of safety and support. Whether viewed through the lens of traditional Reiki practice, psychophysiology, Polyvagal Theory, or nervous system regulation, many individuals report feeling calmer, more grounded, and more connected following treatment.
While additional high-quality research is needed to clarify mechanisms and optimal treatment protocols, current findings suggest that Reiki may serve as a valuable complementary practice within integrative healthcare settings, supporting the body's natural capacity for rest, regulation, and recovery.
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References
Liu, K., Qin, Z., Qin, Y., Li, Y., Liu, Q., Gao, F., Zhang, P., & Wang, W. (2025). Effects of Reiki therapy on quality of life: a meta-analysis of randomized controlled trials. Systematic reviews, 14(1), 72. https://doi.org/10.1186/s13643-025-02811-5
