Does mindfulness work for anxiety? What the research shows

The short answer from the research is "sometimes, and by a modest amount". Several reviews and at least one large trial report that structured mindfulness programmes reduced anxiety symptoms. Other analyses found mixed results, unclear risk of bias or no lasting effect. This page goes through the main sources, using only the figures and conclusions found in them. It describes research, gives no personal advice, and does not suggest that mindfulness treats an anxiety disorder.

What the larger reviews found

A frequently cited analysis is a 2014 systematic review and meta-analysis in JAMA Internal Medicine by Goyal and colleagues. It included 47 randomised trials with 3,515 participants, with searches running to November 2012. The authors found moderate evidence that mindfulness meditation programmes improved anxiety, with an effect size of 0.38 at 8 weeks and 0.22 at 3 to 6 months. They graded the evidence for stress and distress as low, and found no evidence that meditation programmes were better than any active treatment, including drugs, exercise and other behavioural therapies. Their conclusion was that such programmes can bring small to moderate reductions in some negative aspects of psychological stress.

The US National Center for Complementary and Integrative Health (NCCIH) summarises more recent work. It describes a 2018 NCCIH-supported analysis of more than 12,000 participants that found mindfulness-based approaches better than no treatment for anxiety and depression, and about as effective as established evidence-based treatments. The same page then describes a 2021 analysis of 23 studies with 1,815 participants, all focused on adults with diagnosed anxiety disorders. Its short-term results were mixed: mindfulness-based approaches did better than usual treatments overall, but only some types matched cognitive behavioural therapy. NCCIH adds that these results should be read with caution because the risk of bias in the studies was unclear, and that the few studies following people for more than 2 months found no long-term effects.

A head-to-head trial against medication

In 2023, Hoge and colleagues published a randomised trial in JAMA Psychiatry that compared an eight-week mindfulness-based stress reduction (MBSR) course with the antidepressant escitalopram in adults with a diagnosed anxiety disorder. Of 276 adults recruited at three US medical centres, 208 completed the trial. On the clinician-rated severity scale used as the main measure, scores fell by 1.35 points in the MBSR group and 1.43 in the escitalopram group. The difference between groups was small, and the researchers concluded that MBSR was noninferior, meaning it was not shown to be meaningfully worse.

The same paper reports that at least one study-related adverse event occurred for 78.6 percent of participants given escitalopram and 15.4 percent of those given MBSR, and that 10 people (8 percent) left the escitalopram group because of adverse events, against none in the MBSR group. NCCIH lists this trial among its examples of research on meditation and anxiety. It is a single trial of two active treatments, so it says little about how MBSR compares with doing nothing, and it tested a full eight-week taught course, which is different from a few minutes of practice at home. The structure of such a course is explained in Mindfulness programmes: MBSR and MBCT.

What is mixed or weak

Several limits run through this literature. NCCIH notes that a 2019 analysis of 23 studies in college and university students found that yoga, mindfulness and meditation all had some effect on stress, anxiety and depression, but that most of the included studies were of poor quality with a high risk of bias. Its clinical digest also says that positive findings are less common in people with anxiety disorders than in people with depression, and that the evidence supports mindfulness as an addition to other treatment.

Results also depend on who is studied. A 2021 Cochrane review of mindfulness-based interventions for medical students and junior doctors included 10 studies with 731 participants. For anxiety straight after the programme it found no substantial difference from waiting-list or no intervention, and the certainty of the evidence was very low. The authors concluded that effectiveness in that group remained unconfirmed. That review covers one specific population and should not be stretched to everyone, but it shows how uneven the findings can be.

Programmes versus short exercises

Most of the strongest evidence concerns taught programmes with a trained instructor, not brief solo exercises. The NHS says that studies show mindfulness can help with stress, anxiety and depression, that more research is needed for other conditions, and that it is not right for everyone: some people find it does not help or that it can make them feel worse. For people who simply want a short practice to try, the Mindful minutes timer and the Paced breathing timer are exercises, not treatment, and nothing here shows they would produce the results seen in the trials above. A grounding exercise such as 5-4-3-2-1 grounding may suit some moments of stress. For background on how stress and anxiety differ, see Stress and anxiety: what is the difference?.

When to talk to a professional

Mindfulness is not a replacement for professional care. NCCIH advises against using meditation or mindfulness to replace conventional care or as a reason to postpone seeing a health care provider. Anyone whose anxiety is severe, lasts for weeks, interferes with work, sleep or relationships, or comes with panic, low mood or thoughts of self-harm should speak to a doctor or a qualified mental health professional. Further guidance is on the page When self-help is not enough.

The short version

Structured mindfulness programmes have shown small to moderate effects on anxiety in several reviews and one large trial, but many studies are of uncertain quality and long-term results are unproven. It can be a reasonable addition to care, and it is not a substitute for it when anxiety is severe or persistent.