Yoga for Anxiety & Depression: Independent Evidence and Risks

Table of contents

• Evidence summary
• What counts as yoga in trials
• What guidelines say
• How it works
• What works and what does not
• Benefits by claim
• Risks and all side effects
• Interactions with medicines, treatments and conditions
• Who should take care or avoid some practices
• Doses studied, delivery and cost
• Follow the money: who sells it and who funded the evidence
• Related research
• Frequently asked questions
• Sources and funding notes

Evidence summary

Independent evidence and credibility scorecard

Independence tiers: 1 = regulator, government health agency or guideline body; 2 = academic or publicly funded team with no declared commercial funding for the work; 3 = authors with declared ties to a yoga or breathwork organisation, or work funded or delivered by a body whose mission is to promote the practice; 4 = an organisation that sells, teaches or officially promotes the practice. Credibility runs from A (highest) to D.

Sources cluster in the US and Germany. The large Indian trial base is represented here mainly through independent analyses of it, because of the documented excess of positive conclusions in trials run in India.

What counts as yoga in trials

"Yoga" in research is not one treatment. A review of 306 randomised trials counted 52 different yoga styles. The most common were hatha yoga (36 trials), Iyengar yoga (31), pranayama breathing (26) and the "integrated approach to yoga therapy" (15). Ninety-one per cent of these trials reached a positive conclusion, and the proportion did not differ by style (Cramer et al. 2016). Most modern Western forms combine physical postures (asanas), breathing techniques (pranayama) and meditation (Cramer et al. 2017, accepted manuscript).

Forms that appear in the mental-health trials reviewed here:

• Hatha, Iyengar and vinyasa yoga: posture-led classes, often with breathing and relaxation. Used in depression, stress and PTSD trials (Uebelacker 2017; Michalsen 2012).
• Kundalini yoga: "physical postures, breathing techniques, relaxation exercises, and meditation practices" in the main GAD trial (NCCIH).
• Trauma-informed (trauma-sensitive) yoga: a gentler, choice-based class tested in women with chronic PTSD (van der Kolk 2014).
• Heated (hot) yoga: classes in a heated room, including the Bikram sequence of 26 postures and two breathing exercises (Nyer 2025).
• Breathing-only practices: slow or "coherent" breathing, and Sudarshan Kriya yoga (SKY), which the researchers who tested it describe as "essentially rhythmic hyperventilation at different rates of breathing" (Janakiramaiah 2000).
• Comparators: tai chi and qigong, Chinese movement-and-breath practices often grouped with yoga as "mind–body exercise" (Noetel 2024).

How common is it? The share of US adults who practised yoga rose from 5.0% in 2002 to 15.8% in 2022. Survey data from 2012 showed 94% practised for wellness and 17.5% to treat a specific health condition (NCCIH).

Legal status: yoga is an activity, not a regulated medicine, so no regulator licenses it as a treatment. In 2015 a US federal appeals court ruled that a sequence of yoga poses and breathing exercises could not be protected by copyright, because it was a system designed to improve health rather than creative expression (Bikram's Yoga College of India v. Evolation Yoga, 9th Cir. 2015).

What guidelines say

• NICE depression guideline (NG222, UK): lists "group exercise" (more than one session a week for 10 weeks, usually 8 people, moderate-intensity aerobic exercise) among treatment options for both less severe and more severe depression, and "group mindfulness and meditation" as an option for less severe depression. It also suggests adding group exercise when antidepressants alone have had limited effect. The word "yoga" does not appear in the recommendations (NICE NG222).
• NICE anxiety, PTSD and antenatal guidelines: we found no mention of yoga in the recommendations of CG113 on generalised anxiety and panic, NG116 on PTSD or CG192 on antenatal and postnatal mental health (CG113; NG116; CG192).
• US VA/DoD PTSD guideline (2017): found insufficient evidence to recommend complementary practices, including yoga, and did not recommend against them (PHCoE evidence brief, 2021). We did not check the 2023 revision.
• NCCIH (US): says yoga "can be a helpful addition to treatment for depression", may help anxiety symptoms, but there is "little evidence of a benefit for people with anxiety disorders" (NCCIH).

How it works

Several mechanisms have been proposed. Some are measured in people; others are theory. The table separates them.

In short, yoga probably works partly as exercise, partly as a structured group activity and partly through attention to breathing and body awareness. No study has shown that a specific "yogic" mechanism explains the mood benefit.

What works and what does not

Benefits by claim

Depression

The evidence has grown over a decade and the estimates have shrunk as trials got better.

• 2013: 12 trials, 619 participants. Compared with usual care, yoga reduced depression severity (SMD −0.69, 95% CI −0.99 to −0.39). (Cramer et al. 2013).
• 2017, major depressive disorder only: 7 trials, 240 participants. No difference from aerobic exercise or antidepressants; ECT worked better than yoga in the short term. The authors said the evidence precluded "definitive recommendations for or against" yoga as an add-on. The review had no funding and no conflicts (Cramer et al. 2017; manuscript).
• 2021, people with any diagnosed mental disorder: 13 trials (632 people) meta-analysed. Yoga beat waitlist, usual care and attention control (SMD −0.41, 95% CI −0.65 to −0.17). More sessions per week went with bigger reductions (Brinsley et al., BJSM 2021).
• 2024, depressive disorders: 20 trials (1,333 people) meta-analysed. Benefit over passive controls (SMD −0.43) but not over active controls (SMD −0.22, 95% CI −0.67 to 0.23). Remission was more likely than with either type of control. Evidence quality ranged from moderate to very low (Moosburner et al. 2024).
• 2024, all exercise types: the BMJ network meta-analysis placed yoga alongside walking or jogging and strength training as among the more effective forms of exercise (Noetel et al. 2024).

What the numbers mean: an effect size of about 0.5 is usually described as moderate. In practice, it means the average person in a yoga group ended up less depressed than about two-thirds of people in the control group. But most trials could not blind participants, and Noetel's team found funded studies reported larger effects (g −1.01, versus −0.77 for unfunded studies) (Noetel 2024).

As an add-on to antidepressants: an NIH-funded US trial randomised 122 people still depressed on medication to weekly hatha yoga or health-education classes for 10 weeks. There was no significant difference at 10 weeks. Over the whole follow-up, yoga participants had fewer symptoms, and at 6 months 51% versus 31% had responded (OR 2.31, p = 0.04) (Uebelacker et al. 2017).

Generalised anxiety disorder and anxiety symptoms

The most rigorous trial of yoga for any anxiety disorder randomised 226 adults with GAD to Kundalini yoga (93), group CBT (90) or stress education (43). Each was given as twelve 120-minute group sessions with 20 minutes of daily homework. (Simon et al., JAMA Psychiatry 2021).

• 12 weeks: response in 54.2% with yoga, 70.8% with CBT and 33.0% with stress education. Yoga beat the control (NNT 4.59, 95% CI 2.52 to 46.19). CBT beat the control by more (NNT 2.62). Yoga failed the non-inferiority test against CBT (difference 16.6%).
• Secondary measures: CBT beat the control on 6 of 7 anxiety and depression scales and yoga on 3 of 7. CBT and yoga did not differ significantly from each other on these measures (Hoge et al. 2023).
• Follow-through: 64.5% of the yoga group and 74.4% of the CBT group completed the post-treatment assessment; the difference was not significant (Simon 2021).

Pooled data tell a similar story. Across 8 trials (319 people), yoga had a small effect on anxiety compared with no treatment (SMD −0.43, 95% CI −0.74 to −0.11). The effect was seen in people with raised anxiety, but "no effects were found" in people diagnosed with an anxiety disorder by DSM criteria (Cramer et al. 2018). NCCIH notes that a 2019 review of 38 studies found "a substantial beneficial effect" on anxiety symptoms, "with the greatest effects seen in studies performed in India" (NCCIH). That pattern matters; see the money section.

Stress and cortisol

For stressed adults from the general population, a 2024 review found low-quality evidence that yoga reduced perceived stress in the short term compared with no intervention (SMD −0.69, 95% CI −1.12 to −0.25). Over the longer term, active comparison groups did slightly better than yoga (SMD 0.23). None of the three trials that reported safety recorded adverse events (Schleinzer et al. 2024).

A German trial funded by the Karl und Veronika Carstens Foundation compared two yoga programmes with mindfulness training in 102 distressed adults. Stress fell substantially in all three groups, with no significant differences between them (Fischer et al. 2022). That suggests the movement component is not essential for stress relief.

On physiology, yoga-based practices were linked to lower waking and evening cortisol and lower resting heart rate than active controls (Pascoe et al. 2017). These are markers, not outcomes people feel, and the trials used very different programmes.

Depression and anxiety in pregnancy and after birth

• An early review of 6 trials (375 pregnant women) found less depression with yoga (SMD −0.59, 95% CI −0.94 to −0.25).
• A 2026 umbrella review of 20 meta-analyses found physical activity reduced perinatal depressive symptoms with moderate certainty. Yoga's pooled effect was SMD −0.55 (95% CI −0.95 to −0.15). The review declared no funding (Mohr et al. 2026).
• A separate 2026 review of 35 studies found reductions mainly "in women without prior depressive or anxiety symptoms", and no significant effect in women with existing symptoms. Certainty was low to very low (Ranjbar et al. 2026).

Put simply: prenatal yoga may help prevent or ease mild symptoms, but evidence that it treats established perinatal depression is thin and inconsistent. The 2015 review found a small benefit in pregnant women who were already depressed (SMD −0.46, 95% CI −0.90 to −0.03) (Gong 2015), while the 2026 review found no significant effect in women with existing symptoms (Ranjbar 2026). NICE's antenatal mental-health guideline does not mention it (NICE CG192).

PTSD and trauma-sensitive yoga

• Pooled evidence: 7 trials (284 people). Low-quality evidence of benefit against no treatment (SMD −1.10), but only very low-quality evidence of comparable effects with attention-control classes (Cramer et al. 2018).
• Trauma-informed yoga: 64 women with chronic, treatment-resistant PTSD. After 10 weekly classes, 52% in the yoga group no longer met PTSD criteria, versus 21% after women's health education (16 of 31 vs 6 of 29). Funded by NCCIH (van der Kolk et al. 2014).
• Veterans: the largest trial (209 people, 91% veterans) compared 16 weeks of a yoga programme with a control programme. PTSD severity fell more with yoga at the end of treatment (mean difference −5.4 on CAPS-5) but not at 7-month follow-up (−0.9, p = 0.603). Funded by the US Department of Veterans Affairs (Davis et al. 2020).
• Kundalini yoga: a preliminary Canadian trial of 80 adults used 8 weekly 90-minute Kundalini classes against a waitlist (study details as summarised in Cramer 2018).

The US VA/DoD guideline rates the evidence for yoga in PTSD as insufficient to recommend for or against (VA/DoD 2017). NICE's PTSD guideline does not mention it (NICE NG116).

Sleep

A review of 19 trials in women with sleep problems (1,832 participants) found that, in the 16 trials using the Pittsburgh Sleep Quality Index, yoga improved overall sleep quality (SMD −0.54, 95% CI −0.89 to −0.19). It did not significantly improve insomnia severity in the three trials that measured it, and showed no clear benefit in women with breast cancer or around the menopause (Wang et al. 2020). In the GAD trial, sleep improved substantially in all three groups, but not more with yoga or CBT than with stress education (Jacoby et al. 2024). For chronic insomnia, the established first-line psychological treatment is CBT-I (see Related research).

Breathing practices: pranayama, breathwork and Sudarshan Kriya

A meta-analysis from the University of Sussex pooled 12 randomised trials (785 adults) of deliberate breathing practices. Breathwork was linked to lower stress than control conditions (g −0.35, 95% CI −0.55 to −0.14), with similar small effects on anxiety (g −0.32, 20 trials) and depressive symptoms (g −0.40, 18 trials) (Fincham et al., Sci Rep 2023).

Sudarshan Kriya yoga (SKY) is a breathing programme taught through organisations founded by Sri Sri Ravi Shankar (see the money section). Its trial base:

• Melancholic depression (India, 2000): 45 inpatients randomised to SKY, ECT or imipramine for 4 weeks. Remission rates were 93% (ECT), 73% (imipramine) and 67% (SKY). The authors concluded SKY was "inferior to ECT" but could be an alternative to drugs. Participants were not blinded (Janakiramaiah et al. 2000).
• Depression not helped by antidepressants (US, 2017): 25 patients. SKY improved Hamilton scores by 9.77 points versus a 0.50-point worsening on the waitlist. A pilot only, supported by NIH infrastructure grants (Sharma et al. 2017).
• PTSD in veterans: a 21-person trial found large reductions in PTSD scores (d = 1.16) against a waitlist (Seppälä et al. 2014). A larger VA-funded trial of 85 veterans found SKY non-inferior to cognitive processing therapy on PTSD symptoms up to 1 year (Bayley et al. 2022).
• Full versus partial SKY: one comparison of SKY with and without its cyclical breathing found no difference in depression improvement (as reported in Moosburner 2024).

Heated yoga for depression

A Massachusetts General Hospital trial randomised 80 adults with moderate-to-severe depression to heated hatha yoga at community studios or a waitlist. Participants attended an average of 10.3 classes over 8 weeks. Depression scores fell more with yoga (Cohen's d 1.04), and 59.3% versus 6.3% had a large response. The authors said the results "warrant further research using active control conditions". The trial was funded through NCCIH and NHLBI career grants (Nyer et al. 2023). A waitlist control cannot separate yoga, heat, exercise and expectation.

Tai chi and qigong as comparators

In the BMJ network meta-analysis, tai chi or qigong reduced depression (g −0.42, 95% credible interval −0.65 to −0.21, from 343 people), slightly less than yoga (Noetel 2024). In an NCCIH-funded trial of 178 depressed older adults already on antidepressants, adding tai chi chih did not improve mood or remission more than health-education classes (35.5% vs 27.0% remission at 3 months, not significant), although general health improved more (Lavretsky et al. 2022).

Risks and all side effects

Yoga is generally safe for healthy people when taught properly. Serious injuries are rare, most injuries are sprains and strains, and "the risk of injury associated with yoga is lower than that for higher impact physical activities" (NCCIH).

What trials show

Of 301 randomised trials of yoga, only 94 reported adverse events. Across those (8,430 participants), yoga did not differ from usual care or exercise in serious adverse events, non-serious adverse events or dropouts for adverse events. Compared with psychological or educational programmes, yoga produced more intervention-related adverse events (OR 4.21) and non-serious events (OR 7.30), which is expected for a physical activity (Cramer et al. 2015). Most depression and anxiety reviews say safety reporting was poor: no trial in the 2013 depression review reported safety data (Cramer 2013).

Injuries in the real world

US emergency departments saw an estimated 29,590 yoga-related injuries from 2001 to 2014. The trunk was most often injured (46.6%), and sprains and strains made up 45.0%. In 2014 the injury rate was 57.9 per 100,000 participants aged 65 and over, compared with 11.9 per 100,000 at ages 18 to 44 (Swain & McGwin 2016).

Rare serious events

A review of published case reports found 76 cases. Headstand, shoulder stand, lotus position and forceful breathing were the practices most often involved. About a third affected the musculoskeletal system, 18% the nervous system and 12% the eyes, and one person died (Cramer et al. 2013). A 2026 update of 84 case-reported events found headstand (18%) and forceful pranayama (10%) most often implicated, with Bikram, Ashtanga and hatha yoga the styles most often named. Over half of those affected had pre-existing vulnerabilities (Sharma et al. 2026). Case reports show what can happen, not how often.

Psychological effects

Six of 84 case-reported adverse events (7%) were psychiatric (Sharma 2026). Trauma-informed yoga was developed partly because body-focused practice can bring up distress in people with trauma; its trial aimed to help people "tolerate physical and sensory experiences associated with fear and helplessness" (van der Kolk 2014).

Interactions with medicines, treatments and conditions

Yoga has no drug interactions in the pharmacological sense. The relevant "interactions" are with other treatments and with health conditions:

• Antidepressants: trials tested yoga and tai chi as add-ons to stable antidepressant treatment, not as replacements (Uebelacker 2017; Lavretsky 2022). Stopping an antidepressant should be planned with a prescriber.
• Psychological therapy: in GAD, yoga was less effective than CBT (Simon 2021). Using yoga instead of an evidence-based therapy could mean a less effective treatment.
• Heat: hot yoga adds heat stress to exercise. ACOG advises pregnant women to "avoid high heat and humidity" during exercise (ACOG Committee Opinion 804).
• Glaucoma: head-down poses raise eye pressure quickly (Jasien 2015).
• Weak bones: case-report reviewers say people with "compromised bone should avoid forceful yoga practices" (Cramer 2013).
• Alcohol and drugs: the same reviewers advise that yoga should not be practised under the influence of psychoactive drugs (Cramer 2013, full text).

Who should take care or avoid some practices

Few people need to avoid yoga altogether, but many need to adapt it. NCCIH lists knee or hip injuries, lumbar spine disease, "severe high blood pressure", balance problems and glaucoma as conditions that may call for modifications. It says pregnant women, older adults and people with health conditions should talk with their health care provider and the instructor (NCCIH).

Doses studied, delivery and cost

The "doses" below are what trials delivered. They are not a prescription.

Across trials in people with mental disorders, more sessions per week went with larger reductions in depressive symptoms (Brinsley 2021). For exercise in general, effects were proportional to the intensity prescribed, and yoga appeared to work better in groups (Noetel 2024). For comparison, NICE's group exercise model is more than one session a week for 10 weeks with about 8 participants (NICE NG222).

Cost and access

Yoga is mostly paid for privately. The NHS website offers free yoga videos, including vinyasa flow and prenatal and postnatal yoga (NHS Fitness Studio). In a survey of 2,514 heated-yoga users of CorePower Yoga, described by the researchers as the largest US yoga studio brand, 23% reported clinical depression and 87% were women (Nyer et al. 2025). We found no independent, citable figure for typical class prices or for the cost-effectiveness of yoga in depression or anxiety.

Quality of teaching

Because trials used trained instructors and set protocols, results may not carry over to any class. NCCIH advises practising "under the guidance of a qualified instructor" (NCCIH). We did not verify any statutory registration scheme for yoga teachers in the UK or US.

Follow the money: who sells it and who funded the evidence

Who sells it

• Studios and classes: yoga is sold mainly through studios, gyms and teachers. Researchers describe CorePower Yoga as the largest US yoga studio brand. In a 2025 study, its survey was distributed through CorePower's customer mailing lists (method not re-checked). Funding is not stated in the record we checked (Nyer et al. 2025).
• Owning a sequence: Bikram's Yoga College of India sued to protect its 26-pose sequence under copyright. The Ninth Circuit ruled in 2015 that the sequence could not be copyrighted (9th Cir. 2015).
• Breathing programmes: the Breath-Body-Mind programme of Richard Brown and Patricia Gerbarg offers courses, teacher training and books (Breath-Body-Mind). SKY is taught by the International Association for Human Values (IAHV), "created in Geneva in 1997" by Sri Sri Ravi Shankar, who is also the founder of the Art of Living Foundation. IAHV describes SKY as "backed by research" (IAHV).
• Market size: we found no independent, audited figure for the size of the global or UK yoga industry. Industry-commissioned estimates exist but we could not open a primary copy, so we do not quote them.

India's Ministry of Ayush: a state promoter and research funder

• UN International Day of Yoga: the UN proclaimed 21 June as International Day of Yoga on 11 December 2014 (resolution 69/131). The draft was "proposed by India" and endorsed by 175 member states, after Prime Minister Narendra Modi introduced it at the UN General Assembly (United Nations).
• Budget: we did not check the Ministry of Ayush's 2026–27 allocation against the official Demand for Grants document, and could not confirm any line item for yoga promotion (Union Budget 2026–27 Demand for Grants, not opened).
• WHO centre: the WHO Global Centre for Traditional Medicine in Jamnagar, India, is "supported by an investment of USD 250 million from the Government of India". The agreement was signed with the Ministry of Ayush. WHO's announcement cites research on meditation and yoga for mental health (WHO 2022).
• Trial registrations: of 2,919 yoga trials in the WHO trial registry platform (September 2024), 56.39% were registered in the Clinical Trials Registry of India. The analysis was co-authored by staff of the National Institute of Naturopathy, an institute of the Ministry of Ayush (Mondal et al. 2025).
• The positive-results signal: independent German reviewers examined 306 yoga trials. Trials conducted in India had about 25 times the odds of reaching a positive conclusion (OR 24.8, 95% CI 3.3 to 184.5). They advised that "Indian trials should be dealt with carefully" when judging yoga for patients elsewhere (Cramer et al. 2015). This is a pattern, not proof of misconduct in any trial.

Who funded the trials and reviews

• US government: NCCIH funded the main GAD trial (Simon 2021), the trauma-informed yoga trial (van der Kolk 2014), the heated-yoga trial (Nyer 2023) and the tai chi trial (Lavretsky 2022). The National Institute of Nursing Research funded the add-on depression trial (Uebelacker 2017). The VA funded both large veteran trials (Davis 2020; Bayley 2022).
• German foundations: the Karl und Veronica Carstens Foundation in Essen supported an Iyengar yoga trial for distressed women; one co-author was affiliated with the foundation itself (Michalsen 2012). It also funded the yoga-versus-mindfulness stress trial (Fischer 2022). The foundation, founded in 1981, describes itself as a charitable, independent body that has helped evaluate complementary medicine, and it runs a homeopathy research platform (Carstens-Stiftung).
• Reviews with no external funder found: the BMJ network meta-analysis (Noetel 2024), the 2017 and 2024 depression reviews (Cramer 2017; Moosburner 2024), the PTSD review (Cramer 2018) and the stress review (Schleinzer 2024) had no external funder in the sources we checked; several of those statements were not re-checked against the full text.
• Charities: the first SKY veterans trial was funded by the Disabled American Veterans Charitable Service Trust (Seppälä 2014, full text).

Allegiance: researchers tied to the method they test

In yoga research the main conflicts are less about drug-company money and more about researchers who teach, developed or promote a method.

• Kundalini yoga: the senior author of the GAD trial reported "grants and personal fees from Kundalini Research Institute", grants from the Kripalu Center for Yoga & Health, and being a certified Kundalini yoga instructor (Simon 2021). The trial still reported that yoga fell short of CBT.
• Trauma-sensitive yoga: the PTSD trial was run at the Trauma Center at Justice Resource Institute, and co-author David Emerson co-wrote a book on trauma and yoga with the lead author (van der Kolk 2014; reference list in Cramer 2018).
• Breathing programmes: the breathwork meta-analysis lead author "trained as a Breath Teacher with The Breath-Body-Mind Foundation" (Fincham 2023). Breath-Body-Mind's founders, Brown and Gerbarg, co-authored the hypothesis paper proposing that yoga corrects vagal and GABA under-activity (Streeter 2012).
• SKY: in the first veterans trial, instructors came from Project Welcome Home Troops, "a project of the International Association of Human Values" (Seppälä 2014). The later VA trial declared no competing interests (Bayley 2022, full text).
• Funding and effect size: across exercise trials for depression, funded studies reported larger effects (g −1.01 versus −0.77 for unfunded studies) (Noetel 2024).

Documented integrity events

We found no regulatory enforcement actions about yoga health claims in the sources we reviewed. The documented legal event is the 2015 copyright ruling above. The main integrity concern is structural: the excess of positive results in trials from one country, frequent researcher allegiance, and weak safety reporting.

What this means: the strongest evidence on yoga for depression and anxiety comes from unfunded reviews and US government-funded trials, and it points the same way: a real but modest short-term benefit, similar to other exercise, and smaller than standard psychological treatment for anxiety disorders. The most enthusiastic claims tend to come from smaller trials, from trials run in India, and from programmes evaluated by the people who teach them. No guideline body we checked recommends yoga by name for depression, anxiety disorders or PTSD.

Related research

For wider, evidence-graded context, see these Pure City Research guides:

• Exercise and social support for mental health
• Stress, anxiety and depression: evidence and care options
• Generalized anxiety disorder
• Major depressive disorder
• Cognitive behavioural therapy (CBT)
• Behavioural activation for depression
• Perinatal and postpartum depression
• Post-traumatic stress disorder
• Occupational burnout
• Insomnia
• CBT-I: cognitive behavioural therapy for insomnia
• Depression in older adults

Frequently asked questions

Sources and funding notes

What we could not verify: In this pass we checked PubMed abstracts and, where open, PMC full texts for the central trials, plus the NCCIH and NICE pages. Removed in this pass because we could not confirm them: the lululemon revenue figure, the NIH RePORTER grant totals, the Gong 2015 subgroup comparisons and the six-month results of Simon 2021. Still open: the Indian Union Budget document, which we did not open, so no Ayush budget figures are given; the funders of the 2015 Indian-trials review, Brinsley 2021 and the Schleinzer 2024 review, which are not in the records we could open; the 2023 VA/DoD guideline text, which we did not open (the 2017 finding is cited from the PHCoE evidence brief); the Breath-Body-Mind Foundation and Robert Bosch Center funding claims, not checked; the CorePower survey method, not re-checked; and breathwork side-effect reports, not re-checked.

1. NCCIH. Yoga: Effectiveness and Safety — US government (NIH) fact sheet.
2. NCCIH research result: Kundalini yoga and GAD (12 August 2020) — US government; funder of the trial.
3. NCCIH funding appropriations history — US government.
4. NICE NG222. Depression in adults: treatment and management (2022) — UK government-funded guideline.
5. NICE CG113. Generalised anxiety disorder and panic disorder in adults — UK government-funded guideline.
6. NICE NG116. Post-traumatic stress disorder — UK government-funded guideline.
7. NICE CG192. Antenatal and postnatal mental health — UK government-funded guideline.
8. VA/DoD Clinical Practice Guideline for PTSD (2017), as summarised in PHCoE evidence brief (2021) — US government.
9. Noetel M et al. Effect of exercise for depression: systematic review and network meta-analysis. BMJ 2024 (full text) — University of Queensland, Australia; funding statement not confirmed in our check.
10. Moosburner A et al. Yoga for depressive disorder: systematic review and meta-analysis. Depress Anxiety 2024 (full text) — Tübingen/Robert Bosch Center, Germany; no specific funding; no conflicts declared.
11. Cramer H et al. Yoga for depression: systematic review and meta-analysis. Depress Anxiety 2013 — Essen, Germany; funding statement not seen.
12. Cramer H et al. A systematic review of yoga for major depressive disorder. J Affect Disord 2017 (accepted manuscript) — Germany/Australia; "Funding/support None"; conflicts "None".
13. Brinsley J et al. Effects of yoga on depressive symptoms in people with mental disorders. Br J Sports Med 2021 — funding not checked; country and conflicts not re-checked.
14. Cramer H et al. Yoga for anxiety: systematic review and meta-analysis. Depress Anxiety 2018 — Germany/Australia/UK; funding statement not seen.
15. Simon NM et al. Efficacy of yoga vs CBT vs stress education for GAD. JAMA Psychiatry 2021 (full text) — US; NCCIH/NIH grants (conflict statement); last author has Kundalini Research Institute and Kripalu ties.
16. Hoge EA et al. Kundalini yoga, CBT and stress education for GAD: secondary outcomes. Psychiatry Res 2023 — US; NIH grants; same author disclosures.
17. Jacoby RJ et al. CBT and yoga for GAD: effects on sleep quality. J Sleep Res 2024 — US; NIH grants.
18. Uebelacker LA et al. Adjunctive yoga v. health education for persistent major depression. Psychol Med 2017 — US; National Institute of Nursing Research grant R01 NR012005.
19. Schleinzer A et al. Effects of yoga on stress in stressed adults. Front Psychiatry 2024 — Germany; no external funding found in the full text we could open.
20. Pascoe MC et al. Yoga, MBSR and stress-related physiological measures: meta-analysis. Psychoneuroendocrinology 2017 — Australia; funding statement not seen.
21. Fischer JM et al. Stress reduction by yoga versus mindfulness training (RELAX study). J Clin Med 2022 — Charité Berlin, Germany; funded by the Karl und Veronika Carstens Foundation.
22. Michalsen A et al. Iyengar yoga for distressed women. Evid Based Complement Alternat Med 2012 (full text) — Germany; supported by the Karl and Veronica Carstens Foundation; one co-author affiliated with the foundation.
23. Gong H et al. Yoga for prenatal depression: systematic review and meta-analysis. BMC Psychiatry 2015 — China; Military Research Foundation and National Instrumentation Program grants; no competing interests.
24. Mohr E et al. Physical activity and perinatal depression and anxiety: umbrella review. EClinicalMedicine 2026 — German Federal Institute for Population Research; funding "None".
25. Ranjbar M et al. Yoga for depression, anxiety and stress in pregnancy and postpartum. Best Pract Res Clin Obstet Gynaecol 2026 — Iran; one co-author a guest editor of the issue.
26. Cramer H et al. Yoga for PTSD: systematic review and meta-analysis. BMC Psychiatry 2018 (full text) — Germany; no external funding found in the full text we could open.
27. van der Kolk BA et al. Yoga as an adjunctive treatment for PTSD. J Clin Psychiatry 2014 — Trauma Center at Justice Resource Institute, US; NCCIH grant R21AT003905.
28. Davis LW et al. Yoga program for PTSD in veterans and civilians. Psychol Trauma 2020 (registration NCT02234622: weekly 90-minute classes; lead sponsor VA Office of Research and Development) — US; Department of Veterans Affairs Rehabilitation R&D.
29. Wang WL et al. Yoga for sleep quality and insomnia in women. BMC Psychiatry 2020 — Taiwan; Taoyuan Armed Forces General Hospital grants; no competing interests.
30. Fincham GW et al. Effect of breathwork on stress and mental health. Sci Rep 2023 (full text) — University of Sussex, UK; funded by the Sylff Association and Ryoichi Sasakawa Young Leaders Fellowship Fund (acknowledgements); lead author trained as a Breath Teacher with the Breath-Body-Mind Foundation (competing-interests statement).
31. Janakiramaiah N et al. Sudarshan Kriya yoga in melancholia vs ECT and imipramine. J Affect Disord 2000 — NIMHANS, India; funding not stated in the record.
32. Sharma A et al. Breathing-based meditation for MDD after inadequate antidepressant response. J Clin Psychiatry 2017 — University of Pennsylvania, US; NIH infrastructure grants; one author with pharmaceutical consultancies.
33. Seppälä EM et al. Breathing-based meditation decreases PTSD symptoms in US veterans. J Trauma Stress 2014 (full text) — US; Disabled Veterans of America Charitable Service Trust (acknowledgements); instructors from Project Welcome Home Troops, an IAHV project.
34. Bayley PJ et al. Breathing-based meditation vs cognitive processing therapy for PTSD in veterans. BMJ Open 2022 (full text) — VA Palo Alto, US; VA RR&D Merit Review; no competing interests.
35. Nyer MB et al. Community-delivered heated hatha yoga for depression. J Clin Psychiatry 2023 — Massachusetts General Hospital, US; NCCIH and NHLBI career grants.
36. Nyer M et al. Survey of heated yoga users of the largest US yoga studio brand. Front Psychol 2025 (full text) — US; funding not stated in the record we checked; the Dauten name in the record is a Massachusetts General Hospital affiliation, not a listed funder.
37. Lavretsky H et al. Tai chi chih or health education for geriatric depression. Am J Geriatr Psychiatry 2022 — UCLA, US; NCCIH grants.
38. Tyagi A, Cohen M. Yoga and heart rate variability: a comprehensive review. Int J Yoga 2016 — RMIT, Australia; funding statement not seen.
39. Streeter CC et al. Yoga versus walking on mood, anxiety and brain GABA. J Altern Complement Med 2010 — Boston University, US; NIH grants including NCCIH.
40. Streeter CC et al. Effects of yoga on the autonomic nervous system, GABA and allostasis (hypothesis). Med Hypotheses 2012 — US; NIH grants; co-authored by the founders of Breath-Body-Mind.
41. Cramer H et al. The safety of yoga: systematic review and meta-analysis of RCTs. Am J Epidemiol 2015 — Germany/Australia/US; funding and conflicts not in the record we checked.
42. Cramer H et al. Adverse events associated with yoga: case reports and case series. PLoS One 2013 (full text) — Germany/US; "no support or funding to report".
43. Sharma S et al. Yoga and its risks: adverse events in case reports and case series. J Integr Med 2026 — India; no competing interests.
44. Swain TA, McGwin G. Yoga-related injuries in the United States, 2001–2014. Orthop J Sports Med 2016 — University of Alabama at Birmingham; no conflicts.
45. Mace C, Eggleston B. Self-reported benefits and adverse outcomes of hot yoga. Int J Yoga Therap 2016 — Central Washington University, US; funding statement not seen.
46. Jasien JV et al. Intraocular pressure rise during four common yoga positions. PLoS One 2015 — New York Eye and Ear Infirmary of Mount Sinai, US; no competing interests declared.
47. Cramer H et al. Are Indian yoga trials more likely to be positive? Contemp Clin Trials 2015 — Germany; funding not verified for this paper (the same authors' 2016 review names the Rut- and Klaus-Bahlsen-Foundation).
48. Cramer H et al. Is one yoga style better than another? Complement Ther Med 2016 — Germany/Australia; funding statement not seen.
49. Mondal H et al. Global and Indian research trends on yoga: WHO trial registry. Bioinformation 2025 — India; co-authors from the Ministry of Ayush's National Institute of Naturopathy.
50. ACOG. Exercise during pregnancy (patient FAQ) — US professional college.
51. ACOG Committee Opinion 804. Physical activity and exercise during pregnancy and the postpartum period (2020) — US professional college.
52. NHS. Joint hypermobility syndrome — UK government health service.
53. NHS. Pilates and yoga exercise videos — UK government health service.
54. Government of India. Notes on Demands for Grants 2026–27, Demand No. 4, Ministry of Ayush — Indian government budget document (not opened; figures from secondary reports).
55. United Nations. International Day of Yoga — UN.
56. WHO. WHO establishes the Global Centre for Traditional Medicine in India (25 March 2022) — WHO news release.
57. Karl und Veronica Carstens-Stiftung (home page) — German foundation funding complementary-medicine research.
58. Robert Bosch Center for Integrative Medicine and Health — Bosch Health Campus, Stuttgart; funding not checked.
59. International Association for Human Values. About us — SKY provider; self-interested.
60. Breath-Body-Mind. About — breathing programme provider; self-interested.
61. Bikram's Yoga College of India v. Evolation Yoga, No. 13-55763 (9th Cir. 8 October 2015) — US federal appeals court opinion.

Educational research reviewed 6 October 2026. This article is not medical advice; talk to a qualified clinician or pharmacist before starting, stopping or combining treatments.