In Good Energy  /  Clinical Foundation

The Research

Most people come to therapy knowing what it is. Hypnotherapy is a different story. Despite decades of peer-reviewed research and institutional endorsement from Stanford, Harvard, and the NIH, it still occupies an unfair place on the fringe — associated more with stage shows than science.

This page is the evidence base for that third layer — the science behind what becomes possible when the subconscious is part of the conversation. Consider it an open invitation to look closer.

Last updated  /  Spring 2026  ·  New = published or recognized after 2019

If you are new to the evidence base for hypnotherapy, begin here. These are the most significant overarching studies, meta-analyses, and institutional endorsements — chosen to represent the breadth of what hypnosis has been clinically shown to do.

The evidence for hypnotherapy in ADHD is more robust than most people realize. Adults and children with ADHD are equally — and in some research, more — hypnotizable than the general population. The brain regions involved in hypnotic focus and ADHD attention regulation overlap significantly, giving the intervention a strong neurological rationale. Most notably, a randomized controlled follow-up study found hypnotherapy produced better long-term outcomes than CBT for adult ADHD at six-month follow-up.

Self-esteem enhancement is among the most frequently cited applications of clinical hypnosis — rated highly effective by over 70% of practitioners in a 2023 international survey of nearly 700 clinicians. The research spans children, adolescents, adults, and clinical populations, with consistent findings: hypnotherapy improves both self-esteem and the self-efficacy beliefs that underpin confidence, often more rapidly than talk therapy alone.

Hypnotherapy has a long evidence base in smoking cessation, weight management, and addiction treatment. The smoking cessation literature is particularly strong: multiple studies show hypnotherapy outperforms nicotine replacement therapy and produces significant long-term quit rates.

Smoking Cessation

Weight Management

Addiction

Clinical hypnosis has been used as an adjunct or replacement for general anesthesia, for procedural anxiety and pain reduction, and for accelerating recovery across a wide range of medical and surgical contexts. Cancer care, IBS, and surgery have the largest and most rigorous evidence bases.

Surgery & Wound Healing

Cancer Care

Cancer is one of the most extensively studied areas of clinical hypnosis, with applications from surgical preparation and chemotherapy side effect management through to pain control and palliative care.

Irritable Bowel Syndrome

IBS is one of the best-studied applications of hypnotherapy, now formally endorsed by both European and North American gastroenterology guidelines as a second-line treatment.

Burns, Diabetes, Hypertension & Other Conditions

Research on hypnotherapy for men's health spans sexual function, prostate cancer treatment side effects, and surgical anxiety. The evidence for psychogenic erectile dysfunction is particularly strong, with hypnosis outperforming both testosterone and pharmaceutical interventions in controlled trials.

Sexual Health & Function

  • Hypnosis Better Than Placebo or Testosterone for Male Sexual Dysfunction: An RCT

    79 men with non-organic impotence randomized to testosterone, trazodone, hypnosis, or placebo. Hypnosis achieved an 80% improvement rate, outperforming both testosterone (60%) and trazodone (67%), and was the only treatment statistically superior to placebo. British Journal of Urology, 1996.

  • The Hypnotherapeutic Treatment of Impotence

    Classic clinical study establishing hypnotherapy as an effective treatment for psychogenic erectile dysfunction, addressing both psychological and physiological dimensions through structured suggestion protocols.

  • Hypnosis for Erectile Dysfunction (Araoz, 2005)

    Review of the Ericksonian hypnotic approach to erectile dysfunction, addressing cognitive, emotional, and relational factors. Discusses the role of performance anxiety and negative self-suggestion in psychogenic ED.

  • Hypnotherapy for Psychogenic Impotence: 3,000 Patients with 88% Success Rate (Crasilneck, 1990)

    A Dallas-based clinician reported treating approximately 3,000 patients for psychogenic impotence with an 88% success rate using structured hypnotherapy — one of the largest case series in the literature on male sexual dysfunction and hypnosis.

    Search: "Crasilneck hypnosis psychogenic impotence" to find citation.

Prostate Cancer & Treatment Side Effects

Men undergoing prostate cancer treatment, particularly androgen deprivation therapy (ADT), frequently experience hot flashes, fatigue, mood changes, and anxiety. Hypnotherapy has been studied as a nonhormonal, non-pharmaceutical option for managing these treatment-related side effects.

Hypnotherapy has a robust evidence base across the major mental health categories. Meta-analyses from 2019 onward show consistently large effect sizes for hypnosis in reducing anxiety — larger at long-term follow-up than many standard interventions.

Anxiety

Depression

PTSD

Stress & Exam Anxiety

Aging & Cognitive Health

Hypnotherapy has been studied for neurological conditions including Parkinson's disease, multiple sclerosis, stroke recovery, tinnitus, and bruxism. The common thread is hypnosis' ability to modulate neuromuscular control, pain processing, and psychological adaptation to chronic illness.

Parkinson's Disease

Multiple Sclerosis

Stroke Recovery

Tinnitus

Bruxism, Stuttering & Other Conditions

Pain is the most extensively researched application of clinical hypnosis. Meta-analyses now encompass thousands of participants across chronic pain, procedural pain, surgical pain, and condition-specific pain. The evidence consistently shows medium-to-large analgesic effects, and hypnosis is increasingly recommended as a complement or alternative to opioid-based pain management.

Foundational Meta-Analyses

Headaches & Migraines

Fibromyalgia

Chronic, Neuropathic & Pediatric Pain

Hypnosis enhances focus, imagery vividness, motor learning, and psychological readiness across athletic and academic domains. Research consistently shows benefits for sports performance, flow state entry, academic achievement, and language acquisition.

Sports Performance

Academic Performance & Learning

Hypnotherapy has a strong evidence base for fear-based and behavioral conditions including phobias, trichotillomania, tics, and HPV-related immune responses. For phobias in particular, the speed of resolution under hypnosis is often dramatically faster than standard exposure therapy.

Dental & Medical Fears

Specific Phobias

Tics, Tourette Syndrome & Trichotillomania

Warts & HPV

Wart regression through hypnosis is one of the best-replicated phenomena in psychosomatic medicine, demonstrating direct mind-body modulation of the immune response to HPV.

The skin and immune system are particularly responsive to hypnosis-based suggestion, reflecting the deep connections between the nervous system and immune function. These studies offer some of the most direct evidence of mind-body causation in medicine.

Allergies & Immune Modulation

Hormonal & Somatic Effects

Hypnotherapy has demonstrated benefits for insomnia, parasomnias, and restorative sleep quality. A notable 2014 study found that hypnosis literally extends the duration of slow-wave deep sleep — with implications for aging, immunity, and cognitive function.

Hypnotherapy has strong evidence across the full arc of women's reproductive health — from fertility through pregnancy, childbirth, and menopause. The menopause section reflects the most significant recent development in the field: in 2023, The Menopause Society awarded clinical hypnosis its highest tier of evidence for hot flash treatment.

Menopause & Hot Flashes New Category

Since 2019, multiple high-quality RCTs and a landmark institutional endorsement have established clinical hypnosis as a first-line option for hot flashes — one of only two nonpharmacological treatments with Level I evidence. Recent comparative research shows hypnosis outperforms CBT on key outcomes.

Fertility

Pregnancy

Childbirth & HypnoBirthing

Research library  /  In Good Energy  /  Amanda K. Reilly-Johnson, LMHC

Last updated March 2026  ·  New = published or recognized after 2019

All studies linked to PubMed or the publisher's original page where available.

For broken links, search the study title at pubmed.ncbi.nlm.nih.gov or scholar.google.com.