← Back to blog
October 4, 2026
News & Resources · Yoga News

Largest-Ever Review Finds Yoga Nidra Meaningfully Reduces Stress, Anxiety and Depression

Yoga blog post cover image for Largest-Ever Review Finds Yoga Nidra Meaningfully Reduces Stress, Anxiety and Depression

Largest-Ever Review Finds Yoga Nidra Meaningfully Reduces Stress, Anxiety and Depression

Category: Research / Science / Mental Health  •  Source: Annals of the New York Academy of Sciences / PubMed

A systematic review and meta-analysis published in the Annals of the New York Academy of Sciences has pooled data from 73 clinical trials involving roughly 5,201 participants to assess the mental health effects of Yoga Nidra, a guided relaxation practice also known as "yogic sleep." The analysis, led by researcher Shashank Ghai along with co-authors Pawel Odyniec and Ishan Ghai, found statistically significant reductions in stress, anxiety and depression symptoms among people who practiced Yoga Nidra, including when compared against other active interventions rather than no treatment at all. The paper was formally published in the journal's February 2026 issue (Volume 1556, Issue 1, article e70149) after being made available online on December 1, 2025, and is indexed on PubMed under PMID 41327816.

Main Story

The review set out to answer a question that, according to the authors, had not previously been addressed with this level of rigor: does Yoga Nidra specifically — as distinct from broader yoga-asana practice or general meditation — produce measurable benefits for common mental health conditions, and how large are those effects when tested against rigorous standards of evidence synthesis.

Pooling data from 73 eligible studies, the researchers calculated between-group effect sizes using Hedge's g, a statistical measure of effect magnitude that adjusts for small sample sizes. When Yoga Nidra was compared against an active comparator intervention — meaning participants in the control group were also doing something, rather than receiving no intervention — the analysis found a reduction in stress symptoms with an effect size of −0.80, a reduction in anxiety symptoms of −1.35, and a reduction in depression symptoms of −0.69. When Yoga Nidra was instead compared against no treatment at all, the effects were larger still: −1.70 for stress, −1.43 for anxiety, and −0.92 for depression. In conventional interpretation, effect sizes in this range are generally considered moderate to large, with the anxiety reductions standing out as particularly substantial even against active comparators.

The review's authors describe Yoga Nidra as a meditative practice that has "gained momentum over the past decade" as a potential holistic approach to mental health care, and note that the global burden of stress, anxiety and depression has continued to escalate, making evidence-based evaluation of accessible, low-cost interventions a public health priority. According to the published abstract, the paper notes that prior to this study, only one earlier systematic review had examined Yoga Nidra's effects on these three conditions, and that review did not include a quantitative meta-analysis.

Context

Yoga Nidra differs from the physical postures most commonly associated with yoga in the West. It is typically practiced lying down in Shavasana (Corpse Pose) and involves a guided, structured relaxation process — sometimes described in recent literature as a form of "non-sleep deep rest" — rather than active movement or breathing exercises. Because it requires no physical exertion and can be practiced by people with limited mobility, researchers have increasingly studied it as a potential intervention for populations who may not be able to participate in more physically demanding forms of yoga.

This latest paper is part of a broader and recent body of research output from the same lead author, Shashank Ghai, who has in the past two years published a series of related systematic reviews and meta-analyses examining Yoga Nidra's effects across different health domains, including studies on pain management, cardiovascular health, and hypertension. Those companion studies, published separately in journals such as Complementary Medicine Research and the Journal of Ayurveda and Integrative Medicine, have generally reached cautiously positive conclusions about Yoga Nidra's potential as a complementary intervention, while consistently flagging methodological limitations — including high or unclear risk of bias in many of the underlying trials — as a reason for interpreting pooled effect sizes with some caution. That pattern is relevant context for the new stress-anxiety-depression review, since meta-analyses of Yoga Nidra research as a field have repeatedly noted that a sizeable share of the available clinical trials are small, non-randomized, or inconsistently reported.

Statements / Reactions

The review itself, rather than quoting outside commentators, frames its own findings in cautious but positive terms. The authors describe their results as providing "comprehensive evidence of the beneficial effects" of Yoga Nidra on stress, anxiety and depression, while also conducting sensitivity analyses — including a leave-one-out method, in which each individual study is removed in turn to check whether the overall result depends heavily on any single trial — to test how stable their pooled estimates were.

Consistent with the research group's other recent publications on Yoga Nidra, the authors' broader body of work has repeatedly cautioned that variable methodological quality across included trials can inflate observed effect sizes, and that findings from meta-analyses in this area should generally be treated as supportive rather than conclusive until confirmed by larger, higher-quality randomized controlled trials. No patient advocacy groups, clinicians unaffiliated with the study, or health authorities had publicly responded to the specific findings of this paper as of the time of writing.

Conclusion

The meta-analysis represents the most extensive quantitative synthesis to date of Yoga Nidra's effects on stress, anxiety and depression, drawing on 73 studies and thousands of participants to report moderate-to-large reductions in all three outcomes, with the strongest effects observed for anxiety. While the authors frame the results as meaningful evidence for Yoga Nidra's potential role as a complementary mental health intervention, the findings arrive alongside the same methodological caveats that have accompanied related research from the same group, underscoring that larger and more rigorously controlled trials will be needed before the practice's effects can be considered firmly established.

Sources

💬✨✉️