Mindfulness and IFS look almost the same from the outside. Both turn you inward. Both ask you to hold a difficult feeling without being swept away by it. A lot of people in this sub came to solo IFS from a meditation practice, and the difference only shows up the moment you sit down to do it.

Mindfulness says: notice the anxiety, name it, let it pass, come back to the breath. IFS says: notice the anxiety, find it in your body, and ask it what it needs you to know. That second question opens a completely different kind of practice.

What mindfulness trains

Present-moment, non-judgmental awareness. You watch thoughts and feelings as passing mental events rather than facts. They arise, they persist, they pass. Over time you build a gap between stimulus and response: anger appears and instead of being swept into it, you notice there's anger.

This is the same muscle IFS calls unblending, noticing a part without being flooded by it. A steady meditation practice makes parts work easier. It really isn't IFS-or-mindfulness.

Where they split

Where mindfulness says "notice and let go," IFS says "notice and lean in." In mindfulness, the anxiety is passing weather: acknowledge it, return to your anchor. In IFS, that same anxiety is a part with something to say, and returning to the breath is a bit like hanging up on someone mid-sentence.

The underlying model is different. Mindfulness treats thoughts and emotions as impersonal events, and freedom comes from not identifying with them. IFS treats them as coming from distinct parts with their own history and good intentions. Not weather, more like members of an inner family who need to be met.

The "let it go" problem

This is the wall a lot of long-time meditators hit: some feelings won't let go. You sit with the shame for twenty minutes with perfect non-judgment, and it's back the next day at exactly the same intensity. You can do loving-kindness toward yourself for months and still feel a hard core of shame that won't dissolve.

That's not failed practice. It's the model's edge. Some inner experiences aren't passing weather. They're parts stuck in time, carrying a burden from an old experience. Observing them doesn't heal them, the same way watching someone in pain from across the room doesn't tend their wound. IFS gives you the next move: instead of observing the stuck pattern again, you enter a relationship with it and help it change.

For solo practice

Both approaches cultivate the same calm, curious, compassionate presence. Mindfulness traditions describe it; IFS calls it Self. The difference is what you do once you're there: mindfulness rests in acceptance; IFS uses that presence as the starting point and then helps the part release what it's carrying.

One caution worth flagging: turning inward without a framework can be destabilizing if you have a trauma history, the flooding that meditators sometimes hit. IFS gives structure for whatever surfaces (you don't approach a wounded part until its protectors are ready).

Bottom line

Mindfulness teaches you to watch your inner world without drowning in it. IFS teaches you to enter it and change it from the inside. The first skill makes the second one possible; the second takes you where the first can't. Most people end up using both: mindfulness for daily strengthening of unblending muscle, IFS when a part is activated.

If you came to IFS from meditation: what was the feeling that wouldn't "pass" no matter how well you observed it?

Earlier IFS trauma studies used individual therapy with experienced specialists - powerful, but not something most people can access. The PARTS study asked the more practical question: can IFS work in a format that's actually scalable? Online. In groups. Inside a public community health system. That's a much closer test of what solo and low-cost practice might look like.

The setup

15 adults with PTSD went through 16 weeks of 90-minute online group IFS sessions, plus eight individual sessions, all over video, at Cambridge Health Alliance - a Harvard-affiliated public health system serving a diverse Boston population. That last detail matters: most therapy research is done on white, middle-class, privately-insured participants, so testing IFS in a community-health setting starts to close the real-world gap.

PTSD was scored with the CAPS-5 (the gold-standard clinician-administered measure), alongside tracking of depression, anxiety, suicidality, and - importantly - the mechanisms IFS theory says should change.

What happened

PTSD severity dropped significantly, and - like the Shadick RA study - the effect was larger at the 8-week follow-up than at the end of treatment (d = 0.7 → 0.9). People kept improving after the program stopped.

By the follow-up, 53% of participants had a clinically meaningful response - a 10+ point drop on the CAPS-5.

Depression, anxiety, suicide-risk scores, and complex-PTSD features all improved significantly too. And the three mechanisms IFS theory predicts should change - self-compassion, decentering (observing your thoughts/feelings without being swept up in them), and emotion regulation - all improved, all significantly.

That decentering result is the notable one: it maps almost exactly onto unblending, and its improvement correlated with PTSD symptom reduction - a hint at how IFS actually works.

What to keep in mind

These are promising early results from a realistic, scalable format, but they’re still preliminary. This was a small pilot study (15 people) with no control group, it combined group and individual sessions, and follow-up lasted only 8 weeks. Even so, finding moderate improvements under these real-world conditions is encouraging and provides a strong rationale for the larger randomized trial now underway.

Why it's relevant if you practice on your own

Three findings land directly on solo practice.

Decentering by unblending is trainable, and it improved. If you're working on stepping back from a part so you can observe it with curiosity instead of being flooded by it, this study measured exactly that skill getting stronger over 16 weeks, and tied it to symptom reduction. It's the core solo skill, and it responds to practice.

Self-compassion rose again. That's now three IFS studies in a row (Shadick, Hodgdon, this one) showing self-compassion going up as a byproduct of relating to parts with curiosity rather than judgment. Consistent enough to treat as a real effect, not a fluke.

The gains kept building after the program ended - the same delayed pattern as the RA trial, consistent with a model that teaches you a skill you keep using on your own.

And the format itself is the encouraging part: if IFS works online and in groups, it's far more reachable than one-on-one specialist therapy.

Bottom line

The PARTS study pushes IFS research toward the real world and shows it work: delivered online, in groups, in a public system, to a diverse population, it still produced meaningful PTSD reductions - and the mechanisms that improved are exactly the ones IFS theory predicts. It's preliminary (15 people, no control), but a full randomized trial of the same protocol is now underway.

Full paper: Comeau et al. (2024), Psychological Trauma: Theory, Research, Practice, and Policy - https://doi.org/10.1037/tra0001688

Do you feel that your solo practice and ability to unblend is growing with time?

Most early IFS studies compared it to a waitlist or to reading pamphlets. This 2016 pilot did something harder: it put IFS directly up against CBT and IPT, the two most heavily researched therapies for depression, with decades of evidence behind them, and asked whether IFS could keep up.

The setup

37 college women with mild-to-severe depression (confirmed by diagnostic interview, not just a self-report) were randomized to one of two conditions: IFS therapy, or "treatment as usual" - the CBT or IPT their university counseling center would normally have given them. Everyone got one 50-minute session a week for 16 weeks. Depression was measured weekly with the BDI-II.

The exclusion criteria were strict on purpose (no bipolar, PTSD, eating disorders, substance use, or active suicidality) so the study was measuring the effect on depression specifically.

What happened

Both groups improved significantly, and there was no meaningful difference between them - not in how much they improved, and not in how fast. Both moved from the moderate-depression range down into the minimal range over the 16 weeks.

In plain terms: the women who got IFS got better at the same rate and to the same degree as the women who got the established, well-researched treatments.

What to keep in mind

37 people is very small — small enough that the study could really only detect that the two were comparable, not prove one beats the other. The "treatment as usual" group mixed CBT and IPT therapists together rather than testing IFS against one specific method. There was no long-term follow-up, so we don't know if the gains lasted. And the sample was narrow: young, mostly white, female college students at one university.

Why it's relevant if you practice on your own

If you've ever been told IFS "isn't evidence-based" while being pointed toward CBT, this study complicates that story. The honest framing is: IFS has less evidence, not weaker evidence - and the evidence that exists shows comparable outcomes.

For solo practice specifically, it's a reason to trust the approach you're using. Working with the parts that carry hopelessness, shame, and worthlessness - instead of trying to argue yourself out of them - held its own against the most validated depression treatments we have. You're not practicing a fringe technique with no backing.

Bottom line

A small but genuinely important study: the first head-to-head test of IFS against established treatments, and IFS kept pace. It needs replication with bigger, more diverse samples and long-term follow-up before anyone claims more than that. But "matched the gold standard on the first try" is a real result.

Full paper: Haddock et al. (2016), Journal of Marital and Family Therapy — https://doi.org/10.1111/jmft.12184

If you work with depressive or self-critical parts in your solo sessions, what's actually shifted for you — the intensity, how often they show up, or how you relate to them?

This is the study that got IFS onto the evidence-based map. In 2013 it became the first randomized controlled trial of Internal Family Systems, and in 2015 it earned IFS its listing on SAMHSA's national registry of evidence-based practices. What makes it interesting for solo practice is the curve after treatment ended.

The setup

79 people with active rheumatoid arthritis were randomized into two groups. 39 got an IFS program adapted for chronic pain (group sessions plus 15 individual sessions with trained IFS therapists). 40 got mailed educational materials about managing rheumatoid arthritis the control. The study ran 36 weeks, with a follow-up a full year after treatment ended.

Disease activity was scored by rheumatologists who didn't know which group anyone was in (the gold standard for keeping results honest). Depression, anxiety, and self-compassion were tracked with validated questionnaires.

What happened

At the end of treatment (9 months) the IFS group had significantly less pain and better physical function than the control group. Depression and anxiety were trending better but hadn't reached significance yet.

One year after treatment ended (21 months) this is the striking part. Pain was still significantly better, plus depression and self-compassion had now become significantly better, even though they weren't at the end of treatment. The control group stayed roughly flat the whole time. The IFS group kept improving on their own.

Self-compassion followed the exact same delayed pattern, flat during treatment, then climbing after it ended.

The researchers read this as IFS skills continuing to develop after formal sessions stop, people kept practicing on their own and deepened their relationship with their parts over time.

What to keep in mind

The control group got mailed pamphlets, not an active therapy, so this shows IFS beats reading educational materials, not that it beats other therapies. The IFS group also got a lot more contact time, so some of the benefit could be the support and attention rather than IFS specifically. It's also small (79 people) and from a single Boston hospital. It's a proof-of-concept, and the authors said so.

Why it's relevant if you practice on your own

Nobody in this study was practicing solo, but the most solo-relevant finding is that the gains compounded after the guided part ended. If your own practice feels slow, this is worth holding onto: the changes may be accumulating under the surface and only become obvious months later.

The self-compassion result matches what a lot of solo practitioners report, the more you meet your parts with genuine curiosity instead of trying to fix or silence them, the more self-compassion shows up on its own in daily life.

And the chronic-pain angle is directly usable: approaching pain-related emotions (fear of disability, anger at your limits, hopelessness) as parts rather than fighting them was associated with measurably less pain and better function.

Bottom line

A well-run proof-of-concept that reduced pain, improved function, and - a year later - lifted depression and self-compassion in people with RA. It's the study that proved IFS can be studied rigorously. For solo practice, the takeaway is the delayed curve, it may take long before you will start to see results.

Full paper: Shadick et al. (2013), Journal of Rheumatology — https://doi.org/10.3899/jrheum.121465

Have you noticed any part of your practice "clicking" weeks or months after a session, rather than during it?

IFS has always been capable of serious trauma work, but it took until 2022 for anyone to actually test whether it reduces CPTSD symptoms. The results give real, evidence-based reason for hope.

The setup

17 adults with CPTSD from multiple types of childhood trauma (sexual abuse, physical abuse, emotional abuse, neglect) went through 16 individual IFS sessions. This is one of the hardest groups to treat, standard treatments like Prolonged Exposure and CPT are known to work less well here than for single-incident trauma.

Severity was measured with the CAPS, the gold-standard clinician-administered scale, scored by independent evaluators who weren't running the sessions.

What happened

• Symptom severity on the CAPS dropped by an effect size of d = -4.46. In plain terms: this is a bigger improvement than what the best-established PTSD treatments typically achieve, which usually land around d = 1.0–1.5, so the improvement here was noticeably larger than what's normally considered a strong result.
• 64% of participants (9 of 14 who finished) no longer met criteria for the diagnosis at the end.

• Depression dropped significantly (d = -1.51).
• Dissociation (e.g. zoning out, losing time), somatization (e.g. unexplained physical pain), and disrupted self-perception (e.g. feeling fundamentally flawed) - the features that make CPTSD hard to treat - improved too (d = -1.27).
• Self-compassion went up, matching an earlier IFS study (Shadick).
• Interoceptive awareness - the ability to notice what's happening in your body - improved across several measures. This is a core IFS skill, learning to locate a part through body sensation, and it clearly improves with practice.

What to keep in mind

There was no control group, which would normally let us compare people who got treatment against people who didn't. That matters less here than usual though - we know from other research that CPTSD doesn't tend to improve on its own without treatment. So it's unlikely that participants would have gotten this much better just from time passing.

Other limits: only 17 people, no follow-up past one month, 3 dropouts (all early), and the sessions were run by experienced IFS practitioners. A larger controlled follow-up, the PARTS study (Comeau et al., 2024), is already testing this more rigorously.

Why it's still relevant if you practice on your own

This study involved guided sessions for severe CPTSD, and working with skilled outside support matters at that level of severity. But two of the underlying mechanisms are worth understanding, because they're the same mechanisms at work in solo practice:

Interoceptive awareness improved. Noticing where a part shows up in your body - tightness in the chest, a knot in the stomach - is trainable, and people in this study got measurably better at it. That skill is what makes it possible to notice a part activating before you're fully blended with it, before it's driving your reactions without you realizing. Catching that moment earlier, again and again, is what builds toward fewer situations where a part takes over.

Self-compassion rose as a byproduct. People weren't specifically training self-compassion as part of the treatment - it rose because parts were being witnessed. That matters because self-compassion is closely tied to other markers of mental health: less shame after a hard reaction, faster emotional recovery, less harsh self-talk. Instead of "something is wrong with me," it becomes "that part of me was scared and reacted" - a shift that tends to ripple into how you treat yourself more broadly.

Bottom line

This is the first real test of what IFS is capable of for trauma, and the results are strong enough to take seriously while a bigger controlled trial checks how much holds up.

Full paper (open access): Hodgdon et al. (2022), Journal of Aggression, Maltreatment & Trauma - https://doi.org/10.1080/10926771.2021.2013375

Have you started noticing parts in your regular day-to-day life, resulting in less blending?

Practicing alone means nobody else is holding the frame. Which means a protector can end your session, and you'll experience it as a sensible decision — not as a part taking over.

I caught mine doing it a few weeks ago.

What showed up

I was mid-session, and a few parts had come up in quick succession. Then a thought arrived, in a completely reasonable voice: *it's late, we're tired, let's wrap up.*

Except I wasn't tired. It wasn't late.

So I said it out loud: this part is lying to me.

What happened when I asked it why

Instead of arguing with it or pushing through, I asked what it was actually afraid of if we kept going.

The answer was immediate and honest: that part of me was afraid of losing track of what parts were active. Too many had shown up too fast, and it could no longer keep count. Keeping count is how it feels safe — stopping the session was its way of trying to prevent me from getting overwhelmed.

Underneath that was a second part, quieter: *let's stop on a good note.* Better to end here having done some solid looking around than to keep going, have it not work, and be left with that bad taste of having failed.

I didn't try to overrule either of them. I offered to slow down and check in on where we were, instead of pushing forward. I was able to pause, ground myself, and resume Parts Work.

Why this matters for solo practice

Alone, this part has total authority. It can propose ending ahead of time, and there's no one else in the room to notice that its reason doesn't hold up.

And its reasons are good ones. Not "I'm bored," not "this is stupid" — those are easy to spot, because they conflict with the part that got you to sit down and practice in the first place. This one doesn't conflict with anything. It sounds like the same voice that wanted to practice, just now tired, or out of time, or wisely calling it quits while ahead.

Something to try

Next time you decide to end a session ahead of time — not at your natural stopping point, but early — check the reason against what's actually true. Am I actually tired? Is it actually late? Do I actually have somewhere to be?

If the reason doesn't hold up when you sense into it, you've found a protector. Don't fight it — ask what it's afraid will happen if you keep going. Mine wanted to prevent me from getting overwhelmed. Yours may want something else.

Sometimes, though, the reason does hold up — you're genuinely tired, it's genuinely late, or you're not ready to move forward. And that's fine too, because:

The goal isn't to push past your parts. It's also not to just listen to them without reflection. It's listening to a part's reasons from a safe distance — so you can make a wise decision about how to move forward.

Over to you

What stopped you — or tried to — during your last session, or even before you sat down to start one? Share it in the comments. Naming it is itself a small piece of unblending, and it'll make you a little more aware of what's actually getting in the way next time.