Reiki and physical well-being meet primarily in the area of experienced relaxation. What you feel during a session is not the same as what studies have measured regarding pain, fatigue, or stress, and Reiki finds its place as a complement to care.
What do you feel during and after a Reiki session?
The experience of a Reiki session varies from person to person. It also depends on the flow of a session and the environment of rest it provides. This experience matters: however, it does not prove a therapeutic effect.
Variable physical sensations
During the session, some people describe warmth or tingling. Others speak of heaviness or, conversely, lightness. The moment may also be experienced as calm, relaxation, or drowsiness, and it is also possible to feel nothing in particular.
A qualitative study published in 2002 followed 23 healthy volunteers after a standardized 30-minute session. Participants described an altered perception of time, their surroundings, and their body. Its descriptive nature does not allow for the establishment of medical efficacy.
The concrete process of a session
Reiki is a practice of Japanese origin structured at the beginning of the 20th century and associated with Mikao Usui. Presented as an energy method, this energy treatment is based on a simple gesture: the practitioner places their hands on different areas of the body or holds them nearby.
The recipient usually remains clothed, often lying down. A session lasts from 45 to 75 minutes according to a common description, with each hand position held for 2 to 5 minutes. Some sessions begin with a discussion about expectations and close with time dedicated to the sensations experienced. Unlike a massage, the body is never manipulated: any contact remains light.
What can contribute to relaxation
Several elements of the setting can nurture the experience: calm, stillness, attention paid to sensations, light touch, and rest time. The contribution of each remains unknown. Moreover, Reiki does not systematically prescribe breathing techniques.
Since relaxation is partly born from this setting, you can cultivate it at home, between body and mind. Univers-tibet offers cushions and shawls intended for comfort during meditation, as well as other wellness and meditation items to accompany a moment of relaxation.
These supports are not necessary for Reiki. No medical effect is attributed to them: they serve comfort and mindfulness, not treatment.
What do studies show about physical effects?
The benefits of Reiki have mainly been studied in people who have undergone surgery or are seriously ill. The results relate to pain, fatigue, anxiety, and sleep. They often remain favorable, but are fragile due to their size and quality.
Results concerning pain
A meta-analysis published in 2026 brought together 15 randomized trials in a surgical context, totaling 1,208 participants. The Reiki groups included 545 people, the control groups 663. Some postoperative pain improved at 24 and 48 hours, with low to moderate certainty of evidence.
A trial conducted with 180 people who underwent wisdom tooth surgery specifies the order of magnitude. Average pain reached 2.7 ± 1.8 with Reiki and 3.0 ± 1.7 with simulated Reiki. It rose to 3.5 ± 1.9 without intervention (p = 0.045): a modest difference.
Among 572 people with cancer, a 2023 review bringing together 7 studies notes a decrease in pain in 5 of them, but not in the other 2. In intensive care, a trial of 60 ventilated patients, divided equally between Reiki and simulated Reiki, observed less pain and anxiety under Reiki. This context remains far from an ordinary session.
Fatigue and quality of life
A systematic review published in 2026 included 5 studies on cancer-related fatigue: 2 randomized trials, 2 quasi-experimental studies, and 1 crossover study. All report decreased fatigue.
Regarding overall well-being, a 2025 meta-analysis involving 661 participants noted an improvement in quality of life. The standardized mean difference, a measure of effect size, is 0.28 (95% CI from 0.01 to 0.56; p = 0.043), with heterogeneous studies. After a stroke, adding Reiki to rehabilitation improves mood and vitality, with no effect on daily autonomy or depression.
Stress, anxiety, and sleep
A 2001 study of 23 people found, after a session, a decrease in anxiety and systolic blood pressure. Cortisol, a stress-related hormone, did not change significantly. A 2021 randomized pilot trial of 48 participants found no significant difference between Reiki, simulated Reiki, and no treatment; for heart rate, the p-value of 0.053 remains inconclusive.
A review presented in 2024 lists 3 studies on sleep, totaling 122 participants: 2 positive, 1 negative, and an efficacy deemed unproven. Additionally, a 2021 review of 11 mental health studies considers a possible improvement in well-being regarding stress and tension, while calling for rigorous trials.
What can be concluded from the available evidence?
Studies on Reiki draw encouraging signals. Understanding why helps maintain a balanced view of what you experience in a session.
What place should Reiki have in care?
Reiki finds its rightful place as a complementary form of support, chosen freely. This place implies a clear framework: medical follow-up first, then a practitioner who respects your boundaries.
Support that does not replace medical follow-up
When facing persistent discomfort or pain, a Reiki session can provide comfort, without replacing consultation, diagnosis, or medical treatment.
Choosing a practitioner and maintaining choice
Private professional charters ask practitioners not to provide diagnoses, not to prescribe anything, and not to guarantee any results; these commitments remain without guarantee. Before the session, clarify your expectations and ask if hands will be placed or held above the body: you can refuse contact. A number of sessions may be recommended, but you remain free to continue or stop.
Staying attentive to unpleasant experiences
Fatigue, malaise, anxiety, or unpleasant emotions can mark a bad experience. There is nothing to allow them to be systematically attributed to a beneficial "crisis" or an elimination of toxins: report them, and if they persist, talk to your doctor.