Althea Auset

You lie down, someone rests their hands on your shoulders, and twenty minutes later you feel like you’ve slept for a week. So what happened? Was it ki? Was it your nervous system? As an esoteric pharmacist, with one foot in the lab and one in the cauldron, my answer is: probably a bit of both.

What Reiki is

Reiki is the art of transferring energy (ki) through our hands — the life energy said to flow through all things. It was developed in Japan in the 1920s by Mikao Usui, and in Reiki tradition the practitioner is a channel for that energy, not its source.

Here’s how I like to see it: Reiki isn’t magic. It’s also not just placebo. It’s a ritual that meets your nervous system exactly where it is. A session offers:

• a container of stillness
• intentional, gentle touch
• slow, conscious breathing
• permission to switch off for a while

Your body notices all of that — and responds.

Fight-or-flight vs rest-and-repair

Your autonomic nervous system runs quietly in the background with two main modes. The sympathetic mode is fight-or-flight: racing heart, tight muscles, shallow breath. Great for escaping bears; less great when the bear is your inbox. The parasympathetic mode, largely run through the vagus nerve, is rest-and-repair: the heart slows, muscles soften, digestion wakes up, and breathing drops into the belly.

Most of us live in bear mode far too often. Reiki, whatever else it is, is a gentle invitation to switch.

What the studies measured

A few small but interesting trials have looked at the nervous system during Reiki:

• At the University of Granada, health professionals with burnout received either real Reiki or a sham session. After real Reiki, their heart rate variability shifted towards the parasympathetic side and body temperature rose slightly; cortisol didn’t change (Díaz-Rodríguez et al., 2011).
• In a second Granada study, nurses with burnout showed lower diastolic blood pressure and higher salivary IgA — an antibody that tends to dip under stress — after Reiki compared with a sham (Díaz-Rodríguez et al., 2011).
• An earlier pilot study found heart rate and diastolic blood pressure dropped more with Reiki than with a placebo version or no treatment (Mackay et al., 2004).

The small print, said kindly: these are small studies, and a systematic review from the Universities of Exeter and Plymouth concluded the overall evidence isn’t enough to call Reiki a treatment for any condition — and that ki itself hasn’t been scientifically proven (Lee, Pittler & Ernst, 2008).

Science hasn’t managed to catch ki on camera yet. Ki, reportedly, is not bothered and just keeps flowing.

Placebo is neuroscience too

“It’s just placebo,” people say. As a pharmacist, I’d gently ask: just? Research led by Fabrizio Benedetti in Turin shows that expectation, trust and a sense of safety can activate the brain’s own opioids — our natural painkillers — and dopamine, the reward messenger (Frisaldi, Shaibani & Benedetti, 2020).

Your brain is its own little apothecary. A ritual that makes you feel safe and cared for is a lovely way of asking it to open the cabinet.

So is Reiki energy healing in a metaphysical sense? Maybe. Or maybe it’s a beautifully structured way of giving your nervous system permission to rest. Either way, the calm you feel is real.

Your skin was made for kindness

One more delight: researchers at the University of Gothenburg found that our skin has special nerve fibres, C-tactile fibres, that respond best to slow, gentle touch — the kind we experience as most pleasant (Löken et al., 2009). We are built to be soothed by caring hands. The old healers knew; the neuroscientists are catching up.

Try it: a mini-Reiki for tonight

1. Sit or lie down somewhere comfortable.
2. Place one hand on your heart and one on your belly.
3. Breathe slowly, letting your belly rise under your hand.
4. Silently repeat: I’m safe here. I’m allowed to rest.
5. Stay for three to five minutes, then notice how your body feels — tension, warmth, softness. No need to see energy.

Whether you call it energy, placebo or a nervous-system reset, the fact that you can feel the shift is what matters.

A kind note on use

Reiki is lovely alongside medical care, never instead of it. If you’re living with anxiety, burnout or any health condition, keep your doctor or mental-health professional in the loop.

Let it flow

A ritual of stillness, a nervous system that loves an invitation to rest, a brain that brews its own medicine, and skin made for kindness. For the full story told aloud, watch the video on YouTube — and follow along on Instagram and TikTok for more mystical science.

Sources

1. Díaz-Rodríguez, L. et al. (2011). Immediate effects of Reiki on heart rate variability, cortisol levels, and body temperature in health care professionals with burnout. Biological Research for Nursing 13(4):376–82: https://doi.org/10.1177/1099800410389166
2. Díaz-Rodríguez, L. et al. (2011). The application of Reiki in nurses diagnosed with burnout syndrome has beneficial effects on concentration of salivary IgA and blood pressure. Revista Latino-Americana de Enfermagem 19(5):1132–8: https://revistas.usp.br/rlae/en/article/view/4423
3. Mackay, N., Hansen, S. & McFarlane, O. (2004). Autonomic nervous system changes during Reiki treatment: a preliminary study. Journal of Alternative and Complementary Medicine 10(6):1077–81: https://doi.org/10.1089/acm.2004.10.1077
4. Frisaldi, E., Shaibani, A. & Benedetti, F. (2020). Understanding the mechanisms of placebo and nocebo effects. Swiss Medical Weekly: https://doi.org/10.4414/smw.2020.20340
5. Löken, L. S. et al. (2009). Coding of pleasant touch by unmyelinated afferents in humans. Nature Neuroscience 12:547–8: https://doi.org/10.1038/nn.2312
6. Lee, M. S., Pittler, M. H. & Ernst, E. (2008). Effects of reiki in clinical practice: a systematic review of randomised clinical trials. International Journal of Clinical Practice 62(6):947–54: https://doi.org/10.1111/j.1742-1241.2008.01729.x