What is hypnotherapy? The complete evidence-based guide
Last updated: March 2026
Hypnotherapy is one of the most widely researched complementary therapies in modern healthcare — yet it remains one of the most misunderstood. If you’ve ever wondered what actually happens during a hypnotherapy session, whether it’s supported by science, or how it differs from stage hypnosis, this guide covers everything you need to know.
We’ve reviewed over 20 years of clinical research, including a 2024 umbrella review of meta-analyses published in Frontiers in Psychology (Rosendahl et al., 2024), to give you an accurate, evidence-based picture of what hypnotherapy is, how it works, and what it can realistically help with.
What is hypnotherapy?
Hypnotherapy is the therapeutic use of hypnosis to address medical, psychological, or behavioral concerns. According to the American Psychological Association’s Division 30 (Society of Psychological Hypnosis), hypnosis is a state of consciousness involving focused attention and reduced peripheral awareness, characterized by an enhanced capacity for response to suggestion (Elkins et al., 2015).
In simpler terms, hypnotherapy uses guided relaxation and focused concentration to help you access a mental state where you may be more open to therapeutic suggestions. It’s not about mind control, losing consciousness, or being made to do things against your will — those are myths rooted in stage entertainment, not clinical practice.
Hypnotherapy is practiced by licensed psychologists, trained counselors, medical doctors, and certified hypnotherapists in clinical settings around the world. It is recognized as a complementary therapy by multiple medical and psychological organizations, including the American Psychological Association (APA), the British Medical Association (BMA), and the National Center for Complementary and Integrative Health (NCCIH).
In 2021, the NCCIH identified hypnotherapy as a treatment approach with “high programmatic priority” and issued dedicated funding announcements for clinical trials — a significant endorsement of its growing evidence base (NCCIH, 2021).
How does hypnotherapy work?
The exact mechanisms behind hypnotherapy are still being studied, but research suggests it works through several interconnected pathways.
Focused attention and suggestibility. During hypnosis, your attention narrows to specific thoughts, feelings, or sensations while peripheral distractions fade. In this state, therapeutic suggestions — such as reframing anxious thoughts, reducing pain perception, or building motivation for behavioral change — may be more readily absorbed and acted upon.
Changes in brain activity. Neuroimaging studies have shown that hypnosis is associated with measurable changes in brain function. Research using fMRI and EEG has identified alterations in the anterior cingulate cortex, prefrontal cortex, and default mode network during hypnotic states (DeSouza et al., 2020). These are areas involved in attention, self-awareness, and emotional regulation.
The role of hypnotizability. Not everyone responds to hypnosis in the same way. Research indicates that individual differences in hypnotizability — the capacity to experience suggested alterations in perception, memory, or behavior during hypnosis — influence treatment outcomes. Studies suggest that around 10–15% of people are highly hypnotizable, 60–70% are moderately hypnotizable, and 15–20% are less responsive to hypnosis. However, even individuals with moderate hypnotizability can benefit from hypnotherapy for many conditions.
Mind-body connection. Hypnotherapy appears to influence both psychological and physiological processes. Research indicates that hypnotic suggestions can modulate pain perception, reduce cortisol levels, alter heart rate and blood pressure, and influence immune function. This is why hypnotherapy has applications in both mental health and medical settings.
How this translates to therapy. Consider someone seeking hypnotherapy for anxiety. During the session, the therapist might guide them into a focused state and then offer suggestions such as visualizing a calm place, mentally rehearsing a feared social situation with confidence, or reframing physical anxiety symptoms (racing heart, tight chest) as harmless sensations of excitement rather than danger. Over multiple sessions, these suggestions can gradually reshape the automatic thought patterns and physical responses that maintain anxiety.
This process works differently from traditional talk therapy, where insight and conscious understanding drive change. Hypnotherapy aims to work at a more automatic level — influencing the habits, associations, and bodily responses that operate below conscious awareness. This is also why it pairs well with cognitive-behavioral approaches, which provide the conscious framework while hypnosis reinforces changes at a deeper level.
What happens in a hypnotherapy session
1. Initial discussion. The session usually begins with a conversation about your goals, concerns, and medical history. The therapist explains what hypnosis is (and isn’t) and answers your questions. This is an important step for building rapport and setting realistic expectations.
2. Induction. The therapist guides you into a hypnotic state using techniques such as progressive relaxation, focused breathing, or guided imagery. One widely used clinical method is the Dave Elman induction, a rapid technique designed to achieve deep relaxation in under five minutes. For a comparison of the two dominant induction philosophies, see Elman vs Erickson. You remain aware and in control throughout — hypnosis is not sleep, and you can open your eyes or stop the session at any time.
3. Deepening. Once you’re in a relaxed, focused state, the therapist may use techniques to deepen that state of concentration. This might involve counting, visualizing a calming scene, or body scanning exercises.
4. Therapeutic suggestions. This is the core of the session. The therapist delivers targeted suggestions aligned with your treatment goals. For someone working on anxiety, this might involve reframing catastrophic thinking patterns. For someone addressing chronic pain, it might involve altering pain perception through imagery.
5. Post-hypnotic suggestions. Before bringing you back to full alertness, the therapist may provide suggestions designed to carry forward after the session — for example, a cue that triggers relaxation when you notice anxiety building.
6. Re-alerting and debriefing. The therapist gently brings you back to normal awareness and discusses what you experienced. Most people describe feeling deeply relaxed, focused, and refreshed afterward.
What hypnosis feels like. A common question is whether you’ll “feel hypnotized.” Most people describe the experience as similar to the state just before falling asleep — deeply relaxed but still aware. You can hear everything the therapist says, and you’ll likely remember most or all of the session afterward. Some people feel heaviness in their limbs, while others feel a sense of floating or detachment. These are normal variations and don’t affect the therapeutic value of the session.
For more detail on session length and frequency, see our guide on how many hypnotherapy sessions you need.
Types of hypnotherapy
Clinical hypnotherapy is the most common form used in healthcare settings. It follows a structured, goal-oriented approach where the therapist delivers direct therapeutic suggestions based on evidence-based protocols. This is the type most often studied in randomized controlled trials.
Ericksonian hypnotherapy is named after psychiatrist Milton H. Erickson and uses indirect suggestions, metaphors, and storytelling rather than direct commands. A 2026 systematic review and meta-analysis of RCTs found that Ericksonian hypnotherapy produced a large effect size (SMD = 1.17) across conditions including pain, depression, grief, and IBS, and was comparable in efficacy to CBT and motivational interviewing (MDPI, 2026).
Cognitive-behavioral hypnotherapy (CBH) combines hypnosis with cognitive-behavioral therapy (CBT) techniques. Research suggests that adding hypnosis to CBT may enhance treatment outcomes for certain conditions. For a detailed comparison, see our guide on hypnotherapy vs CBT.
Solution-focused hypnotherapy focuses on desired outcomes rather than analyzing past problems. Sessions typically combine hypnosis with solution-focused brief therapy techniques.
Regression hypnotherapy aims to uncover and process past experiences that may be contributing to current difficulties. This approach is more controversial in the research literature and less supported by controlled studies than the other forms listed here.
Self-hypnosis is the practice of inducing a hypnotic state independently, without a therapist present. Many clinical hypnotherapy programs teach self-hypnosis as a skill for ongoing self-management. Research supports self-hypnosis for pain management, stress reduction, and sleep improvement. See our complete beginner’s guide to self-hypnosis and self-hypnosis techniques for practical guidance.
What conditions can hypnotherapy help with?
A comprehensive 2024 umbrella review of 20 years of meta-analyses found that hypnotherapy has the strongest evidence base for the following conditions (Rosendahl et al., 2024):
Pain management. This is the area with the most robust evidence. A 2025 systematic review found that hypnosis reduced acute pain by 0.54 standard deviations compared to standard care (95% CI [0.19–0.90], p = 0.0024) and significantly reduced both anxiety and pain during invasive medical procedures (Journal of Psychosomatic Research, 2025).
Anxiety and stress. Research indicates that hypnotherapy may help reduce symptoms of generalized anxiety, social anxiety, and procedure-related anxiety. A 2025 meta-analysis of 20 RCTs found significant reductions in anxiety during invasive procedures (SMD = −0.43, p < 0.001). See our detailed guide: hypnotherapy for anxiety.
Irritable bowel syndrome (IBS). Gut-directed hypnotherapy is one of the most evidence-supported applications. Multiple meta-analyses have demonstrated its effectiveness for reducing IBS symptoms, and it is recommended by the UK’s National Institute for Health and Care Excellence (NICE) as a treatment option for refractory IBS.
Smoking cessation. Studies indicate that hypnotherapy may help with smoking cessation, though evidence is mixed and effects vary depending on the protocol used and individual suggestibility.
Weight management. Research suggests hypnotherapy may support weight loss when used alongside behavioral interventions, though it is not a standalone solution. See: hypnotherapy for weight loss.
Sleep difficulties. Studies indicate that hypnosis may improve subjective sleep quality and reduce time to fall asleep, particularly in individuals with higher hypnotizability. Self-hypnosis techniques before bedtime are one of the most accessible applications. Several hypnosis apps for sleep are designed specifically around this use case.
Phobias. Hypnotherapy has a long history in phobia treatment, often used alongside systematic desensitization. While the evidence base is smaller than for pain or anxiety, clinical reports and some controlled trials suggest that hypnosis-assisted exposure therapy may accelerate phobia treatment.
Habit change. Beyond smoking cessation and weight management, hypnotherapy is commonly used for nail biting, teeth grinding (bruxism), and other habitual behaviors. The evidence varies by specific habit, but the therapeutic logic is consistent — hypnosis may help interrupt automatic behavioral patterns by working at the subconscious level where habits are maintained.
Other areas with emerging evidence include PTSD, depression (as an adjunct to standard treatment), surgical preparation and recovery, chemotherapy-related nausea, and dermatological conditions.
Hypnotherapy vs hypnosis — what's the difference?
The terms “hypnosis” and “hypnotherapy” are often used interchangeably, but they refer to different things.
Hypnosis is the state itself — a natural state of focused attention and heightened suggestibility. Most people experience hypnosis-like states regularly: becoming absorbed in a book, driving on autopilot, or losing track of time during a task. Hypnosis is the tool.
Hypnotherapy is the therapeutic application of that tool. It involves a trained practitioner using hypnosis within a structured clinical framework to address specific health or behavioral goals. Hypnotherapy is the treatment.
Stage hypnosis is entertainment. It relies on selecting highly suggestible volunteers, social pressure, and performance dynamics. It has little in common with clinical hypnotherapy beyond the shared name. The misconceptions created by stage hypnosis — loss of control, memory erasure, embarrassing behavior — are the biggest barriers to people accessing legitimate clinical hypnotherapy.
Is hypnotherapy evidence-based?
The short answer: yes, for specific conditions, with varying levels of evidence.
The 2024 umbrella review by Rosendahl et al. analyzed meta-analyses spanning 20 years of research and 261 distinct primary studies. The review found that hypnosis demonstrated efficacy across multiple domains, with the strongest evidence for pain management and procedural distress, followed by IBS and anxiety-related conditions.
However, the researchers also noted important limitations: many studies had small sample sizes, there was high heterogeneity in hypnosis protocols, and some clinical areas lacked sufficient high-quality RCTs for definitive conclusions.
Key takeaways from the evidence: Hypnotherapy is not a cure for any condition. It is a complementary therapy that research suggests may help manage symptoms and improve outcomes when used alongside standard care. Effect sizes are generally in the small to medium range for most conditions (d = 0.3–0.7), with some applications showing larger effects (pain, IBS). Individual variation matters — hypnotizability, expectation, therapeutic rapport, and the specific protocol used all influence outcomes. Major organizations including the APA, BMA, NICE, and NCCIH recognize hypnotherapy as a legitimate therapeutic approach with evidence for specific conditions.
For a deep dive into the research, see: does hypnotherapy actually work? What 50+ studies say.
How to find a qualified hypnotherapist
If you’re considering hypnotherapy, finding a qualified practitioner is essential for safety and effectiveness. Here’s what to look for.
Professional credentials. Look for practitioners who hold certification from recognized professional bodies. In the United States, key organizations include the American Society of Clinical Hypnosis (ASCH), which requires members to hold a healthcare license, and the Society of Clinical and Experimental Hypnosis (SCEH). In the UK, the British Society of Clinical Hypnosis (BSCH) and the National Hypnotherapy Society maintain practitioner registers.
Healthcare background. Ideally, your hypnotherapist should also be a licensed healthcare professional — a psychologist, physician, dentist, social worker, or counselor. Hypnotherapy is most effective when delivered by someone who understands the clinical condition being treated, not just the hypnosis technique.
Evidence-based approach. Ask about their training, their approach to treatment, and whether they use evidence-based protocols. A credible practitioner will be happy to discuss the research supporting their approach and will set realistic expectations about outcomes.
Red flags to watch for. Be cautious of practitioners who guarantee results, claim hypnotherapy can cure serious medical conditions, discourage you from seeing other healthcare providers, or lack any formal training in both hypnosis and a healthcare discipline. For more on safety considerations, see: is hypnotherapy safe?
App-based alternatives. If in-person therapy isn’t accessible or affordable, hypnotherapy apps offer a more affordable entry point. While they can’t replace personalized clinical treatment, several apps are backed by clinical research and may be helpful for conditions like anxiety, sleep, and stress management. See our independently tested best hypnotherapy apps guide.
Final thoughts
Hypnotherapy is a legitimate, research-supported complementary therapy with a growing evidence base — particularly for pain management, anxiety, and IBS. It’s not magic, it’s not mind control, and it’s not a cure-all. But for the right person and the right condition, research suggests it can be a valuable addition to a broader treatment plan.
The field is evolving rapidly. The NCCIH’s 2021 designation of hypnotherapy as a high-priority research area, combined with advances in neuroimaging and the growth of app-based delivery, means that our understanding of how and when hypnotherapy works is expanding faster than ever.
If you’re new to hypnotherapy, start with the fundamentals: understand what it is (you just did), explore the evidence for your specific condition, and consider whether an in-person practitioner or an app-based approach is the right first step for you.
Frequently asked questions
Is hypnotherapy the same as being hypnotized on stage?
No. Clinical hypnotherapy is a structured therapeutic intervention conducted by a trained practitioner in a clinical setting. Stage hypnosis is entertainment that relies on audience dynamics and volunteer selection. The two share the same underlying phenomenon (focused attention and suggestibility) but have very different purposes, methods, and outcomes.
Can you be hypnotized against your will?
Is hypnotherapy safe?
Research indicates that hypnotherapy is generally safe when conducted by a qualified practitioner. Side effects are rare and typically mild — occasional headache, drowsiness, or temporary emotional discomfort. However, it may not be appropriate for everyone, particularly individuals with certain psychiatric conditions. See: is hypnotherapy safe?
How many sessions will I need?
This depends on your condition and goals. Research studies typically use protocols ranging from 4 to 12 sessions. Some people notice benefits after 2–3 sessions, while complex or long-standing issues may require more. See: how many sessions do you need?
Does insurance cover hypnotherapy?
This article is for informational and educational purposes only and does not constitute medical advice, diagnosis, or treatment. Hypnotherapy is a complementary therapy and should not replace conventional medical treatment. Always consult a qualified healthcare provider before starting any new therapy, including hypnotherapy.
Sources
1. Rosendahl, J., Alldredge, C. T., & Haddenhorst, A. (2024). Meta-analytic evidence on the efficacy of hypnosis for mental and somatic health issues: a 20-year perspective. Frontiers in Psychology, 14, 1330238. DOI: 10.3389/fpsyg.2023.1330238
2. Elkins, G. R., Barabasz, A. F., Council, J. R., & Spiegel, D. (2015). Advancing research and practice: The revised APA Division 30 definition of hypnosis. International Journal of Clinical and Experimental Hypnosis, 63(1), 1–9. DOI: 10.1080/00207144.2014.961870
3. DeSouza, D. D., et al. (2020). Association between anterior cingulate neurochemical concentration and individual differences in hypnotizability. Cerebral Cortex, 30(6), 3644–3654. DOI: 10.1093/cercor/bhz332
4. Hypnosis as a non-pharmacological intervention for invasive medical procedures — systematic review and meta-analytic update (2025). Journal of Psychosomatic Research. DOI: 10.1016/j.jpsychores.2025.112117
5. Ericksonian Hypnotherapy: A Systematic Review and Meta-Analysis of RCTs (2026). Psychotherapy and Counselling Journal of Australia, 7(1), 16. MDPI
6. National Center for Complementary and Integrative Health (2021). Mind and Body Approaches for Health: New Clinical Trials. NCCIH
7. Zhao, F. Y., et al. (2024). Mapping Knowledge Landscapes and Evolving Trends of Clinical Hypnotherapy Practice. International Journal of General Medicine, 17, 5773–5792. DOI: 10.2147/IJGM.S497359
This website is for informational and educational purposes only. The content on HypnoNews does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before starting any new therapy, including hypnotherapy.