How does IFS work in an intensive format?
Internal Family Systems (IFS) sees the mind as made up of parts, each trying in its own way to help, and a core Self that can lead them with qualities such as calm, curiosity and compassion. In an intensive, the extra time allows the work to move from getting to know protective parts to helping the more vulnerable parts they protect, without stopping at the end of an hour. Research on IFS is still at an early stage, and no studies have yet tested IFS delivered as an intensive.
What IFS is
Internal Family Systems was developed by the psychotherapist Richard Schwartz, who founded what is now the IFS Institute to train practitioners in the model. It starts from the idea that the mind is naturally made up of many parts, sometimes called subpersonalities, each with its own feelings, beliefs and ways of acting.
According to the IFS Institute, there are no bad parts. Every part has an intention that is positive for the person, even when what it does causes problems. Parts become extreme when they carry what IFS calls burdens: painful beliefs, emotions or memories taken on through difficult experiences, which do not belong to the part's nature. The aim of therapy is not to get rid of parts but to help them let go of those burdens and find roles that suit them better.
Alongside the parts, IFS describes a Self. This is the core of the person, distinct from the parts, which the IFS Institute describes using qualities including calm, curiosity, compassion, confidence, courage, clarity, creativity and connectedness. In IFS, everyone has a Self, even when it is hard to reach, and therapy helps the Self take the lead.
The three kinds of parts
IFS describes three broad groups of parts, which tend to interact in predictable ways.
| Type | What it does | How it can show up |
|---|---|---|
| Exiles | Young parts carrying pain, fear or shame from earlier experiences, kept out of awareness to protect the person | Sudden waves of hurt, loneliness or terror that seem out of proportion to the moment |
| Managers | Protective parts that run daily life and try to stay in control, so that exiles are never triggered | Striving, controlling, evaluating, caretaking |
| Firefighters | Protective parts that react fast when exiles are triggered, to put out the feeling | Drinking or drug use, binge eating, self-harm, sexual bingeing |
Managers and firefighters want the same thing, which is to keep exiled pain away, but they go about it in opposite ways. Much of the distress people bring to therapy comes from that conflict.
How an IFS session moves
IFS work tends to follow a recognisable sequence:
- Finding a part. You notice a part connected to the problem, perhaps as a feeling, a sensation, a thought or an image.
- Getting some space from it. The therapist helps you separate enough from the part that you can be curious about it, instead of being taken over by it.
- Getting to know it. You find out what the part does, what it is afraid would happen if it stopped, and what it wants for you.
- Asking permission. Protective parts are asked whether they are willing to let the work go further towards what they protect. If they are not, their concerns are explored first.
- Witnessing. Where permission is given, the more vulnerable part is able to show what it has carried, and to be understood.
- Unburdening. The part is helped to release the beliefs and feelings it took on, and to find a new role.
- Checking back. The protective parts are invited to notice what has changed, as they may no longer need to work so hard.
The pace is set by the parts, not the therapist. Several sessions may be spent on the early steps before anything else is possible, and that is part of the approach.
Why IFS lends itself to concentrated time
In weekly therapy, an IFS session often ends just as the work reaches the vulnerable material, and protective parts close things down again before the next week. Each session then begins by re-establishing trust with the same protectors.
An intensive changes that. With several hours, or several days, the work can move from protectors to exiles and through to unburdening without being cut off at the end of the hour. Protective parts that have given permission in the morning do not need to be persuaded again the following week.
The same feature that makes IFS cautious may make it suitable for concentrated time. Asking protective parts for permission before going further is built into the model. It gives a natural brake, so that the extra time is used to follow the system at the pace it can manage, not to push it faster.
What an IFS intensive usually looks like
An IFS intensive usually begins with assessment and an agreed focus, so that the first day can start with the parts most connected to the problem. Much of the work happens with eyes closed, attention turned inward, and the therapist guiding the conversation between you and your parts. There are regular breaks to rest and come back to the room.
Over the days, people often find that the same few protective parts keep appearing, and that once they trust the process, the work can go further than it has done before. The final part of the intensive usually focuses on checking back with the parts involved and planning how to look after the changes in the weeks that follow.
What the research shows
IFS has a growing body of research, but it is still small, and it is worth being clear about what it does and does not show.
- Depression. A pilot study of 37 college women randomised to IFS or to established treatments found that symptoms fell in both groups, with no significant difference between them.
- PTSD after childhood trauma. A pilot study followed 17 adults with PTSD and histories of multiple childhood traumas through sixteen 90-minute IFS sessions. Symptoms fell substantially, but the study had no comparison group.
- Group-based IFS for PTSD. A 2026 randomised trial of 60 people compared an online IFS-based group programme with a matched control programme. Both groups improved, with no significant difference in PTSD symptoms between them, although people in the IFS programme attended more sessions and reported higher satisfaction.
- Physical illness. A trial with 79 people with rheumatoid arthritis found improvements in pain and depressive symptoms in the IFS group compared with an education control.
The IFS Institute's own summary is that the evidence is emerging and that larger, replicated trials are needed for each condition before IFS can be described as evidence-based for it. It also notes that the risk of harm has not yet been systematically studied.
None of these studies tested IFS delivered as an intensive. The case for IFS intensives rests on two separate bodies of evidence: early research on IFS itself, and research showing that some other trauma therapies, such as prolonged exposure and cognitive therapy for PTSD, can be delivered intensively with results similar to weekly delivery. That is a reasonable basis for offering IFS intensives, but it is not proof that they work, and you should be wary of anyone who says otherwise.
Common questions
Do I need to have done IFS before an IFS intensive?
No. Many people come to an intensive without having tried IFS. Some time at the start is spent getting used to noticing parts and speaking with them, and most people find the approach becomes familiar quickly. People who have done IFS before often find they can go further sooner.
Is talking to parts of myself strange?
It can feel odd at first. In practice, most people already describe themselves this way, saying things like "part of me wants to go and part of me does not". IFS takes that ordinary way of speaking seriously, and gives it a structure.
What if a part does not want to do the work?
Then that is where the work starts. In IFS, a protective part that is reluctant is treated as having good reasons, and those reasons are explored before going further. The therapist does not push past it. This is one of the features that makes IFS well suited to concentrated time, because it builds in a way of checking that the system is ready.
Is IFS evidence-based?
Not yet in the formal sense. The IFS Institute describes the research as an emerging evidence base, with positive small studies in depression and PTSD, and says that larger, replicated trials are needed before IFS can be called evidence-based for specific conditions.
Lucy Orton is trained to Level 3 with the IFS Institute, the highest level the Institute offers, and receives regular supervision from an IFS Institute lead trainer. IFS intensives are available online worldwide.
References
- IFS Institute. The Internal Family Systems model outline. ifs-institute.com/resources/articles/internal-family-systems-model-outline
- IFS Institute. Internal Family Systems: An emerging evidence base, a strong foundation for more research. ifs-institute.com/resources/research
- Hodgdon, H. B., Anderson, F. G., Southwell, E., Hrubec, W., & Schwartz, R. (2022). Internal Family Systems (IFS) therapy for posttraumatic stress disorder (PTSD) among survivors of multiple childhood trauma: A pilot effectiveness study. Journal of Aggression, Maltreatment & Trauma, 31(1), 22-43. doi:10.1080/10926771.2021.2013375
- Haddock, S. A., Weiler, L. M., Trump, L. J., & Henry, K. L. (2017). The efficacy of Internal Family Systems therapy in the treatment of depression among female college students: A pilot study. Journal of Marital and Family Therapy, 43(1), 131-144. doi:10.1111/jmft.12184
- Shadick, N. A., Sowell, N. F., Frits, M. L., et al. (2013). A randomized controlled trial of an internal family systems-based psychotherapeutic intervention on outcomes in rheumatoid arthritis: A proof-of-concept study. Journal of Rheumatology, 40(11), 1831-1841. doi:10.3899/jrheum.121465
- Joss, D., Comeau, A., Chevannes, R., et al. (2026). A randomized controlled trial of an online group-based internal family systems treatment for posttraumatic stress disorder: The Program for Alleviating and Resolving Trauma and Stress (PARTS) study. Psychological Trauma: Theory, Research, Practice, and Policy. Advance online publication. doi:10.1037/tra0002089
This page is general information about intensive therapy. It is not a substitute for individual assessment or advice, and reading it does not create a therapeutic relationship. If you are in crisis or at risk of harm, contact local emergency services or a crisis line now. How these articles are written and checked: our editorial standards.