The Fear Beneath the Calm: What a New Analysis of 1,258 Patients Reveals About the Safety of Mindfulness

A Singular Point of View

For years a quiet doubt has trailed behind mindfulness — the worry that turning inward might, for some, make the darkness worse. A major new analysis of more than a thousand patients has now looked that fear squarely in the eye, and its answer is a steadying one.

There is a particular kind of courage in sitting still. To close your eyes, to let the noise of the day settle, to turn your attention gently toward your own breathing — it sounds like the softest thing in the world, and yet for anyone who has lived with depression it can feel like opening a door you are not sure you want opened. What if, in the quiet, the difficult thoughts grow louder? What if stillness, rather than soothing the storm, simply hands it a megaphone?

That unease is not foolish. It has shadowed the practice of mindfulness for a long time, and it deserves an honest hearing rather than a reassuring pat on the head. So it matters — genuinely — that a team of researchers has just given it one. A new study published in JAMA Network Open in August 2026 set out to test, carefully and with the right tools, whether one of our most widely used mindfulness treatments can actually make people worse. The finding, in short: they could find no evidence that it does.

What the study actually looked at

The treatment in question is mindfulness-based cognitive therapy, usually shortened to MBCT. It is worth unpacking that mouthful, because the name tells you exactly what it is. It marries cognitive behavioural therapy — CBT, the well-evidenced approach that helps people notice and gently challenge unhelpful patterns of thought — with the practices of mindfulness meditation, the deliberate act of paying attention to the present moment without judgement. Woven together, they are designed above all to stop depression from coming back; MBCT is recommended across many healthcare systems, our own NHS included, as a way of protecting people who have recovered from repeated episodes of depression from sliding into another.

The trouble is that a good idea can carry an unexamined risk. Since a landmark 2016 review helped establish MBCT as a leading treatment, a handful of smaller studies had reported that some people felt worse after taking part. Those reports were taken seriously — but they shared a crucial weakness. They had no control group: no comparison set of people who received no such treatment, against which the researchers could measure what mindfulness itself had truly changed. Without that comparison, there is no way to know whether a person’s dip was caused by the therapy, or would have happened anyway in the ordinary ebb and flow of a difficult illness.

So a team led by Simon Goldberg, of the University of Wisconsin–Madison’s Center for Healthy Minds, did something admirably patient. Rather than run a fresh trial, they returned to the raw material of that influential 2016 review and reopened it — gathering the individual participant data (the anonymised records of each person, rather than a single averaged result per study) from nine randomised controlled trials, covering 1,258 adults who had used MBCT to guard against depression relapse. A meta-analysis of this kind — pooling many studies and following individual people rather than group averages — is about as sturdy a foundation as this field offers. And this time, the question was not “does it help?” but the harder, more honest one: “does it harm?”

A reassuring answer, honestly framed

The result was a quiet kind of good news. Across those 1,258 patients, the researchers found no evidence that MBCT increased the odds of depressive symptoms worsening when compared with control conditions. More striking still, in some of the secondary analyses the picture tilted the other way: mindfulness-based cognitive therapy appeared to reduce the risk of symptoms worsening relative to other treatments, including antidepressant medication. The fear, in other words, did not survive contact with the evidence.

It would be easy to stop there, on the warm note. But part of trusting a piece of research is respecting its edges. The trials all involved people who were already in partial or full remission — recovered, or nearly so — from recurring depression. That is precisely the group MBCT is designed for, so the finding lands where it should. It does mean, however, that we cannot simply stretch this reassurance over everyone: someone in the grip of an acute, severe episode, or living with a very different condition, was not represented here. It is worth remembering, too, that the earlier safety worries grew from uncontrolled studies of harm that patients reported themselves — real experiences, but without the comparison needed to pin the cause on the therapy. Goldberg himself is careful on this point, hoping future trials will listen more closely to the full range of patient experience. The honest headline is not “mindfulness is safe for all”; it is “for the people it is meant to help, there is no sign it does harm, and good reason to think it does good.”

Why this matters beyond the clinic

Depression touches an almost unimaginable number of lives — close to 332 million people worldwide, by the World Health Organization’s reckoning. When a treatment is handed out on that scale, even a small, hidden risk would matter enormously. Which is exactly why chasing down the doubt, rather than waving it away, is the responsible thing to do. A finding like this does not just soothe individual worry; it steadies the ground beneath a therapy that a great many people quietly depend on.

There is a lesson here too for those of us who live with attention difficulties, ADHD among them, and who are so often told to “just try mindfulness” as though it were a switch. Stillness is a skill, not a personality test you are failing — and the reassurance that a structured, well-taught version of it is unlikely to tip you backwards is worth having in your pocket before you begin.

Bringing a little of it into your own day

You do not need a diagnosis, a waiting list or a meditation cushion to borrow the spirit of this approach. Formal MBCT is best learned with a trained teacher, and if depression has been a repeated visitor in your life it is well worth asking your GP whether a course is available to you. But the everyday habit underneath it is something anyone can practise gently, starting now.

Five small ways to begin

• Begin absurdly small. One minute of noticing your breath is not a lesser version of mindfulness — it is mindfulness. Length is not the point; returning your attention is.
• Treat wandering as the exercise, not the failure. Your mind will drift a hundred times. Each gentle guiding of it back is one repetition of the very muscle you are trying to build.
• Anchor it to something you already do. The first sip of morning tea, the walk to the kettle, the moment before you open your laptop — attaching a pause to an existing habit is far kinder than relying on willpower.
• Name the weather, don’t fight it. If worry or low mood arrives, try simply noting “here is anxiety” rather than wrestling it. Observing a feeling loosens its grip in a way that arguing with it rarely does.
• If it consistently makes you feel worse, stop and speak to someone. This research is reassuring, not a rule for every individual. Trust your own experience and reach for professional support if you need it.

A quieter kind of courage

We tend to imagine bravery as something loud — a raised voice, a bold step forward. But sometimes it looks like a person sitting quietly with their own mind and choosing not to flinch. For a long time, a small doubt whispered that such quiet might cost more than it gave. This new analysis, built patiently on the experiences of more than a thousand people, offers a gentle and well-earned reply: for those it is designed to help, mindfulness-based cognitive therapy shows no sign of doing harm — and every sign of being worth the stillness.

So here is the nudge. The next time the kettle boils, don’t reach straight for your phone. Take sixty unhurried seconds — just you and your breath. Start today, and let the quiet be, for once, entirely on your side.

---

Source: Goldberg, S. B., et al. (2026). “Symptom Worsening in Mindfulness-Based Cognitive Therapy.” JAMA Network Open. DOI: 10.1001/jamanetworkopen.2026.29946. Reported by University of Wisconsin–Madison, 20 August 2026.