MD, PhD, FMedSci, FRSB, FRCP, FRCPEd.

Reiki

Please bear with me and have a look at the three short statements quoted below:

1 Reiki

… a Reiki practitioner channels this pure ‘chi’, the ‘ki’ in Reiki, or energy through her hands to the recipient, enhancing and stimulating the individual’s natural ability to restore a sense of wellbeing. It is instrumental in lowering stress levels, and therefore may equip the recipient with increased resources to deal with the physical as well as the emotional, mental and spiritual problems raised by his/her condition. It is completely natural and safe, and can be used alongside conventional medicine as well as other complementary therapies or self-help techniques.

It has been documented that patients receiving chemotherapy have commented on feeling less distress and discomfort when Reiki is part of their care plan. Besides feeling more energy, hope and tranquillity, some patients have felt that the side-effects of chemotherapy were easier to cope with. Reiki has been shown to reduce anxiety and depression, to raise energy levels in tired and apathetic patients. It is of great value in degenerative disease for the very reasons that pain and anxiety can be reduced.

The treatment is gentle, supportive and non-invasive, the patient always remains clothed. Even though the origins of reiki are spiritual in nature, Reiki imposes no set of beliefs. It can be used by people of different cultural backgrounds and faith, or none at all. This makes it particularly suitable in medical settings. Predicting who would or would not like to receive Reiki is impossible.

2 Emmett

EMMETT is a gentle soft tissue release technique developed by Australian remedial therapist Ross Emmett. It involves the therapist using light finger pressure at specific locations on the body to elicit a relaxation response within the area of concern.

Cancer impacts people in different ways throughout the journey of diagnosis, treatment and recovery. Many have found the EMMETT Technique to be very beneficial in a number of ways. Although pressure therapy isn’t new (e.g. acupressure and trigger point therapy are already well known), the amount of pressure required with EMMETT is much lighter and the placement of the pressure is unique to EMMETT Therapy.

Many cancer patients undergo surgery and experience post-surgery tightness and tension around the surgery site in the scar tissue and further afield through the connective tissue or fascia as the body heals. They experience restricted range of movement that may be painful too. Mastectomy patients as an example will usually experience pain or tenderness, swelling around the surgery site, limited arm or shoulder movement, and even numbness in the chest or upper arm. Here’s where EMMETT can assist.  With gentle pressure to specific points, many women have received relief from the pain, reduced swelling and much improved range of movement.  There are multiple EMMETT points that are used to help these women and that give the therapist a range of options depending on the patient’s specific concern.

Many cancer patients also experience fatigue, increased risk of infection, nausea, appetite changes and constipation as common side effects of chemotherapy.  These symptoms can also be greatly supported with a designated sequence where the EMMETT Therapist gently stimulates areas all around the body for an overall effect.  Patients report reduction in swelling, feelings of lightness, increased energy, more robust emotional well-being, less pain and feeling better generally within themselves.

3 Daoyin Tao

The theory behind this massage lies in traditional Chinese medicine, so covers yin and yang, five elements and Chinese face reading from a health perspective.  It enables the emotional elements behind disease to be explored. For example, the Chinese will say that grief is held in the Lung, anger in the liver, and fear in the kidney.

For this half hour massage there is no need for the patient to remove clothes, so it is a lovely way of receiving a massage where body image may be an issue, or where lines and feeds are in place, making removal of clothes difficult. This massage therapy can be given not only in a clinic, but also on the day unit, on hospital wards and even in an intensive care unit.

In working the meridian system the therapist is able to work the whole body, reaching areas other than the contact zone. Patients have commented that this deeply relaxing and soothing massage is; “one of the best massages I have ever had”. It has been proven to be beneficial with problems of; sleep, headaches, anxiety, watery eyes, shoulder and neck tension, sinusitis and panic attacks, jaw tension, fear, emotional trauma/distress.

END OF QUOTES

__________________________________________________________________________

Where do you think these statements come from?

They sound as though they come from a profoundly uncritical source, such as a commercial organisation trying to persuade customers to use some dodgy treatments, don’t they?

Wrong!

They come from the NHS! To be precise, they come from the NHS NATURAL HEALTH SCHOOL in Harrowgate, a service that offers a range of free complementary therapy treatments to patients and their relatives who are affected by a cancer diagnosis and are either receiving their cancer treatment at Harrogate or live in the Harrogate and Rural District.

This NHS school offers alternative treatments to cancer patients and claim that they know from experience, that when Complementary Therapies are integrated into patient care we are able to deliver safe, high quality care which fulfils the needs of even the most complex of patients.

In addition, they also run courses for alternative practitioners. Their reflexology course, for instance, covers all of the following:

  • Explore the history and origins of Reflexology
  • Explore the use of various mediums used in treatment including waxes, balms, powders and oils
  • Explore the philosophy of holism and its role within western bio medicine
  • Reading the feet/hands and mapping the reflex points
  • Relevant anatomy, physiology and pathology
  • Managing a wide range of conditions
  • Legal implications
  • Cautions and contraindications
  • Assessment and client care
  • Practical reflexology skills and routines
  • Treatment planning

I imagine that the initiators of the school are full of the very best, altruistic intentions. I therefore have considerable difficulties in criticising them. Yet, I do strongly feel that the NHS should be based on good evidence; and that much of the school’s offerings seems to be the exact opposite. In fact, the NHS-label is being abused for giving undeserved credibility to outright quackery, in my view.

I am sure the people behind this initiative only want to help desperate patients. I also suspect that most patients are very appreciative of their service. But let me put it bluntly: we do not need to make patients believe in mystical life forces, meridians and magical energies; if nothing else, this undermines rational thought (and we could do with a bit more of that at present). There are plenty of evidence-based approaches which, when applied with compassion and empathy, will improve the well-being of these patients without all the nonsense and quackery in which the NHS NATURAL HEALTH SCHOOL seems to specialise.

It is bad enough, I believe, that such nonsense is currently popular and increasingly politically correct, but let’s keep/make the NHS evidence-based, please!

Amongst all the implausible treatments to be found under the umbrella of ‘alternative medicine’, Reiki might be one of the worst, i. e. least plausible and outright bizarre (see for instance here, here and here). But this has never stopped enthusiasts from playing scientists and conducting some more pseudo-science.

This new study examined the immediate symptom relief from a single reiki or massage session in a hospitalized population at a rural academic medical centre. It was designed as a retrospective analysis of prospectively collected data on demographic, clinical, process, and quality of life for hospitalized patients receiving massage therapy or reiki. Hospitalized patients requesting or referred to the healing arts team received either a massage or reiki session and completed pre- and post-therapy symptom questionnaires. Differences between pre- and post-sessions in pain, nausea, fatigue, anxiety, depression, and overall well-being were recorded using an 11-point Likert scale.

Patients reported symptom relief with both reiki and massage therapy. Reiki improved fatigue and anxiety  more than massage. Pain, nausea, depression, and well being changes were not different between reiki and massage encounters. Immediate symptom relief was similar for cancer and non-cancer patients for both reiki and massage therapy and did not vary based on age, gender, length of session, and baseline symptoms.

The authors concluded that reiki and massage clinically provide similar improvements in pain, nausea, fatigue, anxiety, depression, and overall well-being while reiki improved fatigue and anxiety more than massage therapy in a heterogeneous hospitalized patient population. Controlled trials should be considered to validate the data.

Don’t I just adore this little addendum to the conclusions, “controlled trials should be considered to validate the data” ?

The thing is, there is nothing to validate here!

The outcomes are not due to the specific effects of Reiki or massage; they are almost certainly caused by:

  • the extra attention,
  • the expectation of patients,
  • the verbal or non-verbal suggestions of the therapists,
  • the regression towards the mean,
  • the natural history of the condition,
  • the concomitant therapies administered in parallel,
  • the placebo effect,
  • social desirability.

Such pseudo-research only can only serve one purpose: to mislead (some of) us into thinking that treatments such as Reiki might work.

What journal would be so utterly devoid of critical analysis to publish such unethical nonsense?

Ahh … it’s our old friend the Journal of Alternative and Complementary Medicine

Say no more!

Reiki is a Japanese technique administered by “laying on hands” and is based on the idea that an unseen “life force energy” flows through us and is what causes us to be alive. If one’s “life force energy” is low, then we are more likely to get sick or feel stress, and if it is high, we are more capable of being happy and healthy (because it is such a clear-cut case of nonsense, we have discussed Reiki regularly; see for instance here, here, here, here, here, here, and here).

But nonsense does not stop researchers from conducting trials. In this new clinical trial, conducted in Physiotherapy Clinic of Khatam Al-Anbia Hospital in Iran, 60 patients with pain due to inter-vertebral disc herniation (IVDH) were randomly assigned to one of three groups.

  1. The Reiki group received three 15-minute Reiki sessions on consecutive days by a master of Reiki plus Indomethacin and Methocarbamol (as in group 3).
  2. The physiotherapy group underwent 7 to 10 sessions of physiotherapy of 60 to 90 minutes (heat therapy, TENS, pelvic traction, and physical exercises) plus Indomethacin and Methocarbamol (as in group 3).
  3. The drug group received Indomethacin capsules 75 mg and Methocarbamol tablets 500 mg every 8 hours daily for one week.

The severity of pain and the activities of daily living (ADL) were measured using visual analogue scales (VAS) and ADL-Instrumental ADL questionnaire before and after the intervention. A significant difference was found in pain intensity and ADL improvement between Reiki and the drug therapy. No significant difference between the Reiki and physiotherapy groups were noted.

The authors concluded that Reiki and physiotherapy are effective methods in managing pain and improving ADL in patients with IVDH; however, Reiki is more cost-effective and faster treatment method than physiotherapy.

This RCT seems fairly well-panned and conducted, and its results are straight forward. My only problem with it is how the findings are interpreted.

The study design was such that there was no blinding or control for placebo effects. Therefore, the observed outcomes can be interpreted in more than one way. In my view, by far the most plausible explanation is that Reiki (being an exotic, impressive intervention that generates plenty of expectation) produced a powerful placebo effect. Physiotherapy (being entirely normal and routine), on the other hand, was only marginally successful. It is regrettable that the authors do not even consider this interpretation of their results. They should have remembered that a clinical trial test the null-hypothesis (the experimental treatment is not better that the comparator) which can be rejected only, if there is no other reasonable explanation for the results produced.

If I am correct, the conclusions should be re-written as follows:

The addition of Reiki to drug treatment generated better outcomes than drug therapy alone. Physiotherapy was only marginally effective. The effects of Reiki are most likely not due to the treatment per se but to a classical placebo response.

Reiki has been on my mind repeatedly (see for instance here, here, here and here). It is one of those treatments that are too crazy for words and too implausible to mention. Yet a new paper firmly claims that it is more than a placebo.

This review evaluated clinical studies of Reiki to determine whether there is evidence for Reiki providing more than just a placebo effect. The available English-language literature of Reiki was reviewed, specifically for

  • peer-reviewed clinical studies,
  • studies with more than 20 participants in the Reiki treatment arm,
  • studies controlling for a placebo effect.

Of the 13 suitable studies,

  • 8 demonstrated Reiki being more effective than placebo,
  • 4 found no difference but had questionable statistical resolving power,
  • one provided clear evidence for not providing benefit.

The author concluded that these studies provide reasonably strong support for Reiki being more effective than placebo. From the information currently available, Reiki is a safe and gentle “complementary” therapy that activates the parasympathetic nervous system to heal body and mind. It has potential for broader use in management of chronic health conditions, and possibly in postoperative recovery. Research is needed to optimize the delivery of Reiki.

These are truly fantastic findings! Reiki is more than a placebo – would have thought so? Who would have predicted that something as implausible as Reiki would one day be shown to work?

Now let’s start re-writing the textbooks of physics and therapeutics and research how we can optimize the delivery of Reiki.

Hold on – not so quick! Here are a few reasons why we might be sceptical about the validity of this review:

  • It was published in one of the worst journals of alternative medicine.
  • The author claimed to include just clinical trials but ended up including non-clinical studies and animal studies.
  • Four trials were not double-blind.
  • There was no critical assessment of the studies methodological quality.
  • The many flaws of the primary studies were not mentioned in this review.
  • Papers not published in English were omitted.
  • The author who declared no conflict of interest has this affiliation: “Australasian Usui Reiki Association, Oakleigh, Victoria, Australia”.

I think we can postpone the re-writing of textbooks for a little while yet.

Reiki is one of the most popular types of ‘energy healing’. Reiki healers believe to be able to channel ‘healing energy’ into patients’ body thus enabling them to get healthy. If Reiki were not such a popular treatment, one could brush such claims aside and think “let the lunatic fringe believe what they want”. But as Reiki so effectively undermines consumers’ sense of reality and rationality, I feel I should continue informing the public about this subject – despite the fact that I have already reported about it several times before, for instance here, here, here, here, here and here.

A new RCT, published in a respected journal looks interesting enough for a further blog-post on the subject. The main aim of the study was to investigate the effectiveness of two psychotherapeutic approaches, cognitive behavioural therapy (CBT) and a complementary medicine method Reiki, in reducing depression scores in adolescents. The researchers from Canada, Malaysia and Australia recruited 188 adolescent depressed adolescents. They were randomly assigned to CBT, Reiki or wait-list. Depression scores were assessed before and after 12 weeks of treatments/wait list. CBT showed a significantly greater decrease in Child Depression Inventory (CDI) scores across treatment than both Reiki (p<.001) and the wait-list control (p<.001). Reiki also showed greater decreases in CDI scores across treatment relative to the wait-list control condition (p=.031).  Male participants showed a smaller treatment effects for Reiki than did female participants. The authors concluded that both CBT and Reiki were effective in reducing the symptoms of depression over the treatment period, with effect for CBT greater than Reiki.

I find it most disappointing that these days even respected journals publish such RCTs without the necessary critical input. This study may appear to be rigorous but, in fact, it is hardly worth the paper it was printed on.

The results show that Reiki produced worse results than CBT. That I can well believe!

However, the findings also suggest that Reiki was nevertheless “effective in reducing the symptoms of depression”, as the authors put it in their conclusions. This statement is misleading!

It is based on the comparison of Reiki with doing nothing. As Reiki involves lots of attention, it can be assumed to generate a sizable placebo effect. As a proportion of the patients in the wait list group are probably disappointed for not getting such attention, they can be assumed to experience the adverse effects of their disappointment. The two phenomena combined can easily explain the result without any “effectiveness” of Reiki per se.

If such considerations are not fully discussed and made amply clear even in the conclusions of the abstract, it seems reasonable to accuse the journal of being less than responsible and the authors of being outright misleading.

As with so many papers in this area, one has to ask: WHERE DOES SLOPPY RESEARCH END AND WHERE DOES SCIENTIFIC MISCONDUCT BEGIN?

The website of the Brighton and Hove News informs us that the Brighton charity Rockinghorse is paying for a Reiki healer to treat young patients at the Royal Alexandra Children’s Hospital in Kemp Town. They claim that studies suggest that Reiki can relieve symptoms of chronic and acute illness, manage stress levels and aid relaxation and sleep. Rockinghorse has provided funding for an initial three years to therapists from Active LightWorks who have already been treating patients at the Alex as volunteers since 2012. The funding will allow the therapists to double the amount of time that they are able to offer treatments from five hours a week to ten.

One of the HDU patients to receive Reiki therapy is eight-month-old Blake Mlotshwa. He suffered a serious infection when he was 18 days old which led to him having two thirds of his bowel removed. Blake is unable to absorb the food and nutrients that he needed to grow and his condition remains critical. The reiki therapists are working with his doctors and nurses to help keep him as comfortable as possible.

Ali Walters, a Reiki therapist, said: “It is wonderful to be able to give both the children and parents an opportunity to relax and unwind. So often parents tell me they are delighted that during treatment their child drops off to sleep or they see their child become more calm and comfortable. I am delighted that Rockinghorse is now funding our work so we can provide more therapists and treatments to support the critical care that is provided in HDU.”

Kamal Patel, paediatric consultant at the Alex, said: “The reiki treatment has improved sleep, fear, anxiety, distress and pain for children on our Paediatric Critical Care Unit over and above what we can achieve through modern medicine. To have such a fantastic team of people offering reiki really helps our patients get better quicker.”

Yes, we have discussed Reiki several times already on this blog. For instance, I quoted the Cochrane review aimed at evaluating the effectiveness of Reiki for treating anxiety and depression in people aged 16 and over.

Literature searches were conducted in the Cochrane Register of Controlled Trials (CENTRAL – all years), the Cochrane Depression, Anxiety and Neurosis Review Group’s Specialised Register (CCDANCTR – all years), EMBASE, (1974 to November 2014), MEDLINE (1950 to November 2014), PsycINFO (1967 to November 2014) and AMED (1985 to November 2014). Additional searches were carried out on the World Health Organization Trials Portal (ICTRP) together with ClinicalTrials.gov to identify any ongoing or unpublished studies. All searches were up to date as of 4 November 2014.

Randomised trials were considered in adults with anxiety or depression or both, with at least one arm treated with Reiki delivered by a trained Reiki practitioner. The two authors independently decided on inclusion/exclusion of studies and extracted data. A prior analysis plan had been specified.

The researchers found three studies for inclusion in the review. One recruited males with a biopsy-proven diagnosis of non-metastatic prostate cancer who were not receiving chemotherapy and had elected to receive external-beam radiation therapy; the second study recruited community-living participants who were aged 55 years and older; the third study recruited university students. These studies included subgroups with anxiety and depression as defined by symptom scores and provided data separately for those subgroups. As this included only 25 people with anxiety and 17 with depression and 20 more with either anxiety or depression, but which was not specified, the results could only be reported narratively.

The findings did not show any evidence that Reiki is either beneficial or harmful in this population. The risk of bias for the included studies was generally rated as unclear or high for most domains, which reduced the certainty of the evidence.

The authors of this Cochrane review concluded that there is insufficient evidence to say whether or not Reiki is useful for people over 16 years of age with anxiety or depression or both.

On a different blog post, I concluded that “we do not need a trained Reiki master, nor the illusion of some mysterious ‘healing energy’. Simple companionship without woo or make-believe has exactly the same effect without undermining rationality. Or, to put it much more bluntly: REIKI IS NONSENSE ON STILTS.”

Perhaps someone should tell the guys at Rockinghorse that they are funding nonsense?

Perhaps the charity should have been responsible enough to do a quick search on the evidence BEFORE they committed their funds?

Perhaps the consultant pediatrician should be sent to a refresher course in evidence-based medicine?

So many ‘perhapses’ – and only one certainty: THIS CHARITY IS WASTING ITS FUNDS ON OFFENSIVE NONSENSE.

The authors of a recent paper inform us that Reiki is a Japanese system of energy healing that has been used for over 2 500 years. It involves the transfer of energy from the practitioner to the receiver, which promotes healing, and can be done by either contact or non-contact methods. Both the receiver and the practitioner may feel the energy in various forms (warmth, cold, tingling, vibration, pulsations and/or floating sensations). Reiki can also be self-administered if one is a Reiki practitioner. Reiki is mainly used to address stress, anxiety, and pain reduction while also promoting a sense of well-being and improving quality of life.

Such statements should make us weary: what is presented here as fact is nothing more than conjecture – and very, very implausible conjecture too. Anyone who writes stuff like this in the introduction of a scientific paper is, in my view, unlikely to be objective and could be well on the way to present some nasty piece of pseudo-science.

But I am, of course, pre-judging the issue; let’s have a quick look at the article itself.

The purpose of this study was to determine the effects of a 20-week structured self-Reiki program on stress reduction and relaxation in college students. Students were recruited from Stockton University and sessions were conducted in the privacy of their residence. Twenty students completed the entire study consisting of 20 weeks of self-Reiki done twice weekly. Each participant completed a Reiki Baseline Credibility Scale, a Reiki Expectancy Scale, and a Perceived Stress Scale (PSS) after acceptance into the study. The PSS was completed every four weeks once the interventions were initiated. A global assessment questionnaire was completed at the end of the study. Logs summarizing the outcome of each session were submitted at the end of the study.

With the exception of three participants, participants believed that Reiki is a credible technique for reducing stress levels. Except for two participants, participants agreed that Reiki would be effective in reducing stress levels. All participants experienced stress within the month prior to completing the initial PSS. There was a significant reduction in stress levels from pre-study to post-study. There was a correlation between self-rating of improvement and final PSS scores. With one exception, stress levels at 20 weeks did not return to pre-study stress levels.

The authors concluded that this study supports the hypothesis that the calming effect of Reiki may be achieved through the use of self-Reiki.

QED – my suspicions were fully confirmed. This study shows precisely nothing, and it certainly does not support any hypothesis regarding Reiki.

If we recruited 20 volunteers who were sufficiently gullible to believe that watching an ice-cube slowly melting in the kitchen sink, or anything else that we can think of, has profound effects on their vital energy, or chi, or karma, or anything else, we would almost certaily generate similar results.

My conclusion is therefore very different from those of the original authors: THIS STUDY SUPPORTS THE HYPOTHESIS THAT GULLIBLE PEOPLE CAN BE EASILY MISLEAD ABOUT BOGUS THERAPIES WITH PSEUDO-SCIENTIFIC STUDIES BY IRRESPONSIBLE WOULD-BE SCIENTISTS.

A new RCT of Reiki healing has been published by US authors from the following institutions: Union Institute & University, Psychology Program, Brattleboro, VT, Coyote Institute, Augusta and Bangor, ME, Eastern Maine Medical Center and Acadia Hospital, Bangor, ME, University of New England College of Osteopathic Medicine, Biddeford, ME, Coyote Institute, Orono, ME. The purpose of this study was to determine if 30 minutes of healing touch could reduce burnout in community mental health clinicians.

The authors utilized a crossover design to explore the efficacy of Reiki versus sham Reiki, a pseudo treatment performed by volunteers who had no experience with Reiki and pretended to be healers vis-à-vis the patients. This sham control intervention was designed to mimic true Reiki.

Subjects were randomized to whether they started with Reiki or sham. The Maslach Burnout Inventory-Human Services Survey (MBI-HSS) and the Measure Your Medical Outcome Profile Version 2 (MYMOP-2) were used as outcome measures. Multilevel modeling was used to represent the relations among variables.

The results showed that real Reiki was significantly better than sham Reiki in reducing burnout among community mental health clinicians. Reiki was significant in reducing depersonalization, but only among single people. Reiki reduced the primary symptom on the MYMOP also only among single people.

The authors concluded that the effects of Reiki were differentiated from sham Reiki. Reiki could be helpful in community mental health settings for the mental health of the practitioners.

My team has published on Reiki (see here and here, for instance), and on this blog I have repeatedly been expressed my doubts that Reiki is more than an elaborate placebo (see here and here, for instance). Do these new results mean that I need to eat my words and henceforth praise the wonders of Reiki? No, I don’t think so!

Having conducted studies on ‘energy healing’ myself, I know only too well of the many pitfalls and possibilities of generating false-positive findings with such research. This new study has many flaws, but we need not look far to find the reason for the surprising and implausible finding. Here is my explanation why this study suggests one placebo to be superior to another placebo.

The researchers had to recruit 16 Reiki healers and several non-Reiki volunteers to perform the interventions on the small group of patients. It goes without saying that the Reiki healers were highly motivated to demonstrate the value of their therapy. This means they (unintentionally?) used verbal and non-verbal communication to maximise the placebo effect of their treatment. The sham healers, of course, lacked such motivation. In my view, this seemingly trivial difference alone is capable of producing the false-positive result above.

There are, of course, ways of minimising the danger of such confounding. In our own study of ‘energy healing’ with sham healers as controls, for instance, we instructed both the healers and the sham healers to abstain from all communication with their patients, we filmed each session to make sure, and we asked each patient to guess which treatment they had received. None of these safeguards were incorporated in the present study – I wonder why!

Many people suffering from depression or anxiety are tempted to try alternative therapies. One of those is Reiki, a 2500 year old treatment described as a vibrational or subtle energy therapy, and is most commonly facilitated by light touch on or above the body. On this blog, we have repeatedly discussed Reiki and the fact that there is no good evidence for this utterly implausible approach (e.g. here, here and here). Yet, there have been reports of Reiki alleviating anxiety and depression – but what does the totality of the available evidence show when it is submitted to an impartial assessment?

This Cochrane review was aimed at evaluating the effectiveness of Reiki for treating anxiety and depression in people aged 16 and over.

Literature searches were conducted in the Cochrane Register of Controlled Trials (CENTRAL – all years), the Cochrane Depression, Anxiety and Neurosis Review Group’s Specialised Register (CCDANCTR – all years), EMBASE, (1974 to November 2014), MEDLINE (1950 to November 2014), PsycINFO (1967 to November 2014) and AMED (1985 to November 2014). Additional searches were carried out on the World Health Organization Trials Portal (ICTRP) together with ClinicalTrials.gov to identify any ongoing or unpublished studies. All searches were up to date as of 4 November 2014.

Randomised trials were considered in adults with anxiety or depression or both, with at least one arm treated with Reiki delivered by a trained Reiki practitioner. The two authors independently decided on inclusion/exclusion of studies and extracted data. A prior analysis plan had been specified.

The researchers found three studies for inclusion in the review. One recruited males with a biopsy-proven diagnosis of non-metastatic prostate cancer who were not receiving chemotherapy and had elected to receive external-beam radiation therapy; the second study recruited community-living participants who were aged 55 years and older; the third study recruited university students.These studies included subgroups with anxiety and depression as defined by symptom scores and provided data separately for those subgroups. As this included only 25 people with anxiety and 17 with depression and 20 more with either anxiety or depression, but which was not specified, the results could only be reported narratively.

The findings did not show any evidence that Reiki is either beneficial or harmful in this population. The risk of bias for the included studies was generally rated as unclear or high for most domains, which reduced the certainty of the evidence.

The authors of this Cochrane review concluded that there is insufficient evidence to say whether or not Reiki is useful for people over 16 years of age with anxiety or depression or both.

This is a very diplomatic way of expressing the truth, I think. A more forceful conclusion might have been that THERE IS NO GOOD EVIDENCE THAT REIKI IS EFFECTIVE. GIVEN THE TOTAL LACK OF BIOLOGICAL PLAUSIBILITY, THIS FINDING IS NOT SURPRISING. FUTURE RESEARCH INTO THIS AREA DOES NOT SEEM WARRANTED.

Distant healing is one of the most bizarre yet popular forms of alternative medicine. Healers claim they can transmit ‘healing energy’ towards patients to enable them to heal themselves. There have been many trials testing the effectiveness of the method, and the general consensus amongst critical thinkers is that all variations of ‘energy healing’ rely entirely on a placebo response. A recent and widely publicised paper seems to challenge this view.

This article has, according to its authors, two aims. Firstly it reviews healing studies that involved biological systems other than ‘whole’ humans (e.g., studies of plants or cell cultures) that were less susceptible to placebo-like effects. Secondly, it presents a systematic review of clinical trials on human patients receiving distant healing.

All the included studies examined the effects upon a biological system of the explicit intention to improve the wellbeing of that target; 49 non-whole human studies and 57 whole human studies were included.

The combined weighted effect size for non-whole human studies yielded a highly significant (r = 0.258) result in favour of distant healing. However, outcomes were heterogeneous and correlated with blind ratings of study quality; 22 studies that met minimum quality thresholds gave a reduced but still significant weighted r of 0.115.

Whole human studies yielded a small but significant effect size of r = .203. Outcomes were again heterogeneous, and correlated with methodological quality ratings; 27 studies that met threshold quality levels gave an r = .224.

From these findings, the authors drew the following conclusions: Results suggest that subjects in the active condition exhibit a significant improvement in wellbeing relative to control subjects under circumstances that do not seem to be susceptible to placebo and expectancy effects. Findings with the whole human database suggests that the effect is not dependent upon the previous inclusion of suspect studies and is robust enough to accommodate some high profile failures to replicate. Both databases show problems with heterogeneity and with study quality and recommendations are made for necessary standards for future replication attempts.

In a press release, the authors warned: the data need to be treated with some caution in view of the poor quality of many studies and the negative publishing bias; however, our results do show a significant effect of healing intention on both human and non-human living systems (where expectation and placebo effects cannot be the cause), indicating that healing intention can be of value.

My thoughts on this article are not very complimentary, I am afraid. The problems are, it seems to me, too numerous to discuss in detail:

  • The article is written such that it is exceedingly difficult to make sense of it.
  • It was published in a journal which is not exactly known for its cutting edge science; this may seem a petty point but I think it is nevertheless important: if distant healing works, we are confronted with a revolution in the understanding of nature – and surely such a finding should not be buried in a journal that hardly anyone reads.
  • The authors seem embarrassingly inexperienced in conducting and publishing systematic reviews.
  • There is very little (self-) critical input in the write-up.
  • A critical attitude is necessary, as the primary studies tend to be by evangelic believers in and amateur enthusiasts of healing.
  • The article has no data table where the reader might learn the details about the primary studies included in the review.
  • It also has no table to inform us in sufficient detail about the quality assessment of the included trials.
  • It seems to me that some published studies of distant healing are missing.
  • The authors ignored all studies that were not published in English.
  • The method section lacks detail, and it would therefore be impossible to conduct an independent replication.
  • Even if one ignored all the above problems, the effect sizes are small and would not be clinically important.
  • The research was sponsored by the ‘Confederation of Healing Organisations’ and some of the comments look as though the sponsor had a strong influence on the phraseology of the article.

Given these reservations, my conclusion from an analysis of the primary studies of distant healing would be dramatically different from the one published by the authors: DESPITE A SIZABLE AMOUNT OF PRIMARY STUDIES ON THE SUBJECT, THE EFFECTIVENESS OF DISTANT HEALING REMAINS UNPROVEN. AS THIS THERAPY IS BAR OF ANY BIOLOGICAL PLAUSIBILITY, FURTHER RESEARCH IN THIS AREA SEEMS NOT WARRANTED.

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