What Actually Happens in Your Brain During Hypnotherapy
Hypnotherapy is backed by a growing body of scientific research — but the more interesting question — the one I find myself returning to, and the one clients often ask — is what’s actually happening inside the brain when someone is in a hypnotic state.
Because something genuinely different is happening. It’s not sleep. It’s not meditation. It’s not visualisation or deep relaxation. And brain imaging is now giving us a way to see why.
First, a reassurance
Hypnosis isn’t what most people picture. You don’t lose consciousness. You don’t lose control. You remain completely aware throughout — you can hear everything, you can speak, and you can bring yourself out of it at any point. What changes isn’t your level of awareness but the quality of it. Where your attention goes. Which parts of your brain are most active. And crucially — which parts step back.
Is hypnosis safe?
Yes — and it’s worth saying this clearly, because it’s often the question sitting quietly underneath all the other questions.
Hypnosis is a natural brain state. It’s not something being done to you from the outside — it’s a state your brain is capable of entering on its own, similar in some ways to the absorbed feeling you get just before sleep, or when you’re completely lost in a book or a film. What a hypnotherapist does is guide you into that state intentionally, and work with you while you’re there.
You cannot be made to do anything against your will. You cannot get stuck in hypnosis. You cannot be given suggestions that override your values or your sense of self. If anything were to feel wrong, you could speak or open your eyes at any point — the state is voluntary and you are always in control of it.
Clinical hypnotherapy is also distinct from the stage hypnosis you may have seen performed as entertainment. Stage hypnosis involves carefully selected, highly suggestible volunteers in a performance context where social pressure plays a significant role. It has very little in common with what happens in a therapeutic session, and the two are often unhelpfully conflated.
In a clinical setting, hypnosis has a strong safety record. The main risks are not physical — they relate to working with a practitioner who isn’t trauma-informed, or using hypnotherapy in situations where it isn’t the appropriate starting point. Which is why choosing the right practitioner matters, and why a first conversation before booking is always worth having.
Hypnosis, hypnotherapy, and RTT — what’s the difference?
These three terms are often used interchangeably, but they’re not quite the same thing — and understanding the distinction helps clarify what you’re actually signing up for.
Hypnosis is the state itself. It’s the neurological condition we’ve been describing — that focused, absorbed, analytically quietened brain state where the conscious filtering mind steps back. Hypnosis on its own isn’t therapy. It’s a state of mind.
Hypnotherapy is the use of that hypnotic state for therapeutic purposes. It’s a broad term that covers a wide range of approaches — from simple suggestion-based work (where a therapist repeats positive statements while you’re relaxed) to deeper analytical work that explores the root of a pattern. The quality, depth, and effectiveness of hypnotherapy varies enormously depending on the method and the practitioner.
The results data for hypnotherapy as a whole are genuinely encouraging. A widely referenced comparison found that hypnotherapy had a 93% recovery rate after six sessions, compared to 38% for psychotherapy after 600 sessions and 72% for behaviour therapy after 22 sessions. These are significant numbers — though worth noting they reflect hypnotherapy broadly, and outcomes depend considerably on the specific approach used and whether the underlying belief is actually being addressed, not just the surface symptom.
This is where the distinction matters. Suggestion-based hypnotherapy — where the therapist repeats positive statements while you’re in a relaxed state — can produce real change, particularly for habits, phobias, and performance-related issues. But if the underlying subconscious belief that’s driving a pattern isn’t identified and updated, the hypnotic state alone isn’t always sufficient to create lasting change. The brain enters a receptive state, but if the root of the issue hasn’t been reached, suggestions placed on top of an unchanged belief tend to fade over time — sometimes relatively quickly. This is why some people find they need repeated hypnotherapy sessions with limited long-term results: the state is being used, but not the full depth of what it makes possible.
RTT — Rapid Transformational Therapy — sits within hypnotherapy but works differently from most approaches. Developed by Marisa Peer, RTT combines hypnosis with elements of cognitive behavioural therapy, psychotherapy, and neuro-linguistic programming. Rather than simply giving the subconscious new instructions from the outside, RTT uses the hypnotic state to go back to where a belief or pattern was first formed — the specific memory or experience where a conclusion about yourself was made — and works with it directly at that level.
The distinction that matters most: many hypnotherapy approaches work with the symptoms of a pattern — replacing a negative thought with a positive one, for example. RTT works with the root — the original experience that created the belief in the first place. This is why results tend to come faster, often in one to three sessions rather than indefinitely, and why they tend to last rather than requiring ongoing top-ups.
The part of your brain that usually gets in the way
There’s a network of brain regions that researchers call the default mode network, or DMN. It’s the network that activates when you’re not doing anything in particular — when your mind is wandering, when you’re replaying a conversation from last week, worrying about next month, or running the quiet background commentary about yourself that most of us carry all day without noticing.
It’s linked to self-referential thinking, memory, and self-awareness. It’s also the network most associated with the analytical, filtering, self-critical voice that tends to keep people stuck — the part of the mind that says I’m not sure that’s really true or but I’ve always been like this or what if it doesn’t work for me.
During hypnosis, brain scans show a significant reduction in activity in this network. The critical, doubting, analysing part of the mind quiets down. Not because anything has been done to override it — but because that’s what naturally happens in a deeply focused, absorbed state. And when it quiets, something else becomes possible: direct access to the subconscious, where the beliefs and patterns that actually drive behaviour live.
What increases instead
While that self-critical network steps back, other networks become more active. The brain becomes more focused, more absorbed, and more receptive. Instead of scanning the environment for external threats or problems to solve, it locks onto one thing — usually the therapist’s voice — and follows it inward.
This is why hypnosis feels different from simply relaxing. You’re not zoning out. You’re zoning in. Alert, present, and directing your attention somewhere specific rather than letting it wander freely.
What happens with memory
One of the things that consistently shows up in the research is a change in how memory-related areas of the brain are functioning during hypnosis. This helps explain something clients often describe but find hard to articulate: that memories accessed in hypnosis feel different — more vivid, more emotionally present, sometimes more complete than the same memory recalled in ordinary waking conversation.
This is why regression work — going back to where a belief or pattern was formed — tends to be more effective in a hypnotic state than in a standard talking session. You’re not just thinking about the memory. You’re in a brain state where it can be accessed and worked with differently.
An honest note on the research
Not every study agrees on every detail — some show the default mode network reducing during hypnosis, others show more complex patterns. Brain imaging is a young field, and measuring a subtle subjective state like hypnosis inside a noisy machine while controlling for suggestion effects is genuinely difficult. The researchers themselves acknowledge this.
But what the research has established clearly enough to be useful is this: hypnosis is a measurably distinct brain state, not simply imagination dressed up. Something neurologically different is happening. And that difference matters — because it helps explain why working in this state tends to produce a different kind of change than talking about the same material in an ordinary conversation.
Why this matters for RTT
RTT hypnotherapy works in exactly this state — the one where the filtering, analytical, self-protective conscious mind has stepped back, and where we can work with the subconscious directly. The regression work and the transformation work both need this quality of open, absorbed, non-resistant attention to land properly.
It also helps explain why the personalised audio recording after a session matters so much. The brain changes that happen during hypnosis involve networks that take time to consolidate. Listening daily for a minimum of 21 days keeps the new belief in regular contact with the same neural systems engaged in the session — which is how a shift experienced once becomes a settled new default over time.
The brain isn’t fixed. It’s responsive, plastic, and shaped by repeated experience. That’s what makes this work possible. And increasingly, it’s what the neuroscience is showing us too.
Maria x
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I’m Maria — a Clinical RTT Hypnotherapist and Confidence Coach working online with professional women worldwide. I combine Rapid Transformational Therapy with trauma-informed coaching and nervous system regulation, going directly to the subconscious root of self-doubt, anxiety and the patterns that keep brilliant women stuck.
If something in this post resonated, a first call is a relaxed, no-obligation conversation about where you are and whether this work is the right fit.
