What Science Says About Massage Therapy and Shiatsu

Holistic therapies are sometimes dismissed as pleasant but unproven — a luxury for those who can afford it, supported more by anecdote than evidence. It is a perspective worth examining, because the research tells a different story.

Over the past two decades, a growing body of peer-reviewed scientific literature has investigated the physiological and psychological effects of massage therapy and Shiatsu. What it shows is not simply that massage feels good — though it does — but that it produces measurable, reproducible changes in the body that have genuine clinical significance.

Cortisol, Serotonin, and Dopamine: The Biochemistry of Touch

One of the most cited studies in massage therapy research was published in the International Journal of Neuroscience by Tiffany Field and colleagues in 2005. The researchers conducted a meta-analysis reviewing multiple controlled studies and found consistent biochemical changes following massage therapy across a range of populations and conditions.

The results were striking: massage therapy was associated with an average reduction in cortisol levels of approximately 31%. Cortisol is the body's primary stress hormone — elevated chronically, it is linked to impaired immune function, disrupted sleep, anxiety, weight gain, and cardiovascular strain. A 31% reduction is not a marginal effect.

Equally significant were the increases observed in serotonin and dopamine — the neurotransmitters most closely associated with mood regulation, motivation, and emotional stability — which rose by approximately 28% and 31% respectively following massage.

These findings help explain what many people report after a treatment: not just physical relaxation, but a genuine shift in emotional state. The body is not simply loosening its muscles. It is changing its chemistry.

Field T, Hernandez-Reif M, Diego M, Schanberg S, Kuhn C. Cortisol decreases and serotonin and dopamine increase following massage therapy. Int J Neurosci. 2005;115(10):1397-413. → pubmed.ncbi.nlm.nih.gov/16162447

Shiatsu and Pain Relief: Randomised Controlled Trial Evidence

A 2024 randomised controlled trial published in the International Journal of Community Based Nursing and Midwifery investigated the effects of Shiatsu massage on pain and anxiety. The study found that participants receiving Shiatsu experienced significant reductions in both pain intensity and anxiety levels compared to the control group.

Randomised controlled trials — where participants are randomly assigned to treatment or control conditions — are considered the gold standard of clinical research. This study's findings carry particular weight precisely because of this methodology: the improvements observed were not simply a placebo effect, but a measurable response to the treatment itself.

Norhapifah H, Isa MR, Abdullah B, Mohamed S. The Impact of Shiatsu Massage on Labour Pain and Anxiety: A Randomized Controlled Trial. Int J Community Based Nurs Midwifery. 2024;12(4):243-253. → pubmed.ncbi.nlm.nih.gov/39411571

Shiatsu and Fibromyalgia: Sleep, Pain, and Quality of Life

A controlled pilot study published in Complementary Therapies in Clinical Practice examined the effects of Shiatsu on fibromyalgia — a condition characterised by widespread musculoskeletal pain, fatigue, and sleep disturbance, for which conventional treatment options remain limited.

After eight weeks of Shiatsu treatment, participants showed measurable improvements across multiple outcomes: reduced pain intensity, better sleep quality, and improved scores on standardised measures of overall health impact. What is particularly relevant is the breadth of the improvements observed — Shiatsu did not simply reduce pain, it improved sleep and the participants' overall sense of health. This reflects something practitioners observe consistently: the effects of Shiatsu are systemic.

Pinto et al. Effects of shiatsu in the management of fibromyalgia symptoms: a controlled pilot study. Complement Ther Clin Pract. 2013. → pubmed.ncbi.nlm.nih.gov/23830713

The Broader Picture: Touch as Medicine

A comprehensive systematic review and meta-analysis published in Nature Human Behaviour in 2024 — one of the most rigorous analyses of touch-based interventions to date — examined data from hundreds of studies involving tens of thousands of participants. The findings confirmed that touch interventions consistently and significantly reduced pain, anxiety, and depression across a wide range of populations, ages, and conditions.

The authors concluded that touch is not simply comforting — it is genuinely therapeutic. And that its benefits are not limited to any particular technique or population, but represent a fundamental aspect of human physiology and wellbeing.

Packheiser J, Hartmann H, et al. A systematic review and multivariate meta-analysis of the physical and mental health benefits of touch interventions. Nature Human Behaviour. 2024;8:1841-1854. → doi.org/10.1038/s41562-024-01841-8

What This Means in Practice

The evidence does not suggest that massage and Shiatsu are miracle cures. They are not replacements for medical care, and they work best as part of a broader approach to health and wellbeing. But what the research does show, clearly and consistently, is that skilled, intentional touch produces real, measurable changes — in stress hormones, in neurotransmitters, in pain levels, in sleep quality, in overall wellbeing.

A 31% reduction in cortisol is clinically meaningful. Significant improvements in pain and sleep quality after eight weeks of Shiatsu represent a genuine improvement in quality of life for people who are often told there is little that can be done.

The body responds to being touched well. That is not a belief — it is biology.

Treatments at Gaia Zen Shiatsu are available at the studio in Basingstoke. If you would like to explore how Shiatsu or holistic massage might support your health and wellbeing, Get in touch via the Contact button