Proven Laughter Yoga Benefits for Health
Laughter yoga benefits include measurable reductions in stress, pain, and cortisol levels — discover how this evidence-based practice supports patient wellbeing and clinical outcomes across healthcare settings.
Table of Contents
- What Is Laughter Yoga and How Does It Work?
- How Does Laughter Yoga Support Mental Health and Stress Relief?
- Laughter Yoga Benefits for Physical Health and Immunity
- How Is Laughter Yoga Used in Clinical and Healthcare Settings?
- Frequently Asked Questions
- Comparing Laughter Yoga to Other Mind-Body Interventions
- How LaughMD Brings Laughter Yoga Benefits to Healthcare
- Practical Tips for Getting the Most From Laughter Yoga
- The Bottom Line
- Sources & Citations
Article Snapshot
Laughter yoga benefits are backed by peer-reviewed research showing reduced cortisol, lower perceived stress, improved immunity, and better cardiovascular function. The practice combines intentional laughter with yogic breathing to trigger measurable physiological and psychological improvements — no sense of humor required.
By the Numbers
- Laughter yoga decreased perceived stress in lung cancer chemotherapy patients with a Cohen’s d of 1.087, indicating a large effect size, as of 2023 (SAGE Journals, 2023).[1]
- Eight weeks of laughter yoga training reduced fasting blood sugar, triglycerides, total cholesterol, and LDL levels while increasing HDL levels in adolescent girls, as of 2025 (National Institutes of Health (PMC), 2025).[2]
- Laughter yoga reduced anxiety and stress levels in children with a p-value less than 0.05, as of 2025, and increased salivary immunoglobulin A levels — a marker of immune function — with a p-value less than 0.01 (National Institutes of Health (PMC), 2025).[3]
- Retirees who completed eight 45-minute laughter yoga sessions showed meaningful improvements in happiness and hope compared to those who continued daily routines, as of 2025 (National Institutes of Health (PMC), 2025).[4]
What Is Laughter Yoga and How Does It Work?
Laughter yoga benefits the body and mind by combining intentional laughter exercises with deep yogic breathing to produce genuine physiological responses — without requiring jokes, humor, or even a good mood to get started. The practice was developed in 1995 by Dr. Madan Kataria in Mumbai, India, and has since spread to thousands of laughter clubs and clinical settings worldwide. The central insight behind laughter yoga is that the body cannot distinguish between voluntary and spontaneous laughter — both produce the same neurochemical and physiological effects.
When you engage in laughter yoga, the diaphragm contracts rhythmically, oxygen uptake increases, and the brain interprets the physical act of laughing as a signal to release endorphins, dopamine, and serotonin. At the same time, cortisol — the body’s primary stress hormone — begins to fall. According to Dr. Madan Kataria, Founder of Laughter Yoga: “Laughter Yoga, developed in 1995 by Dr. Madan Kataria in Mumbai, India, combines laughter exercises with deep breathing techniques to enhance mental well-being. Its unique approach not only triggers the release of endorphins, dopamine, and serotonin — chemicals crucial for elevating mood — but also significantly reduces cortisol levels, which leads to lower stress and depression rates.” (Grand Rising Behavioral Health, 2026).[5]
A standard laughter yoga session typically runs twenty to thirty minutes and includes warm-up clapping and chanting, a series of structured laughter exercises with playful themes, and a cool-down period of guided breathing and relaxation. Sessions can be led in person by a certified laughter yoga leader, delivered via digital platforms, or facilitated by healthcare staff who have completed a basic training program. LaughMD, founded by Prof. Frank Chindamo, CHP — a former Saturday Night Live writer and Certified Humor Professional — provides evidence-based resources that help clinicians and patients apply exactly this kind of structured humor intervention in both clinical and home settings.
The non-pharmacological nature of laughter yoga is one of its most practical clinical features. It requires no medication, no equipment, and no prior fitness level. For patients managing chronic pain, undergoing chemotherapy, or living with anxiety-related conditions, this low-barrier entry point makes laughter yoga a realistic complement to existing treatment protocols rather than an additional burden.
How Does Laughter Yoga Support Mental Health and Stress Relief?
Laughter yoga produces clinically measurable improvements in mental health by reducing cortisol and increasing the neurochemicals associated with positive mood, resilience, and emotional regulation. Research published across multiple peer-reviewed journals demonstrates that these effects are consistent across diverse populations — from cancer patients and nursing staff to children and older adults.
One of the most rigorous studies to date examined laughter yoga benefits in lung cancer patients undergoing chemotherapy. The 2023 pilot randomized trial led by Shuangrong Han found that perceived stress decreased significantly in the intervention group compared to controls, with a large effect size of Cohen’s d = 1.087 (SAGE Journals, 2023).[1] The same study reported a Cohen’s d of 0.692 for improvements in positive psychological capital — a measure that encompasses hope, self-efficacy, resilience, and optimism (SAGE Journals, 2023).[1] As lead researcher Shuangrong Han noted: “The results of this study suggest that laughter yoga is an effective way and may produce beneficial effects on perceived stress, positive psychological capital and exercise capacity. The study showed that after laughter yoga, perceived stress levels decreased in the patients in the intervention group compared with the control group.” (SAGE Journals, 2023).[1]
Healthcare workers represent another population where the mental health benefits of laughter yoga are especially well-documented. A 2024 study examining laughter yoga as a nursing intervention found that stress and burnout levels, depression and anxiety, and salivary cortisol levels all decreased following the intervention. The research team concluded: “Laughter yoga decreases stress and burnout levels, depression and anxiety, salivary cortisol levels… laughter yoga had positive effects on psychological well-being, life satisfaction, subjective happiness increase in and general health in the groups where laughter yoga was practiced.” (National Institutes of Health (PMC), 2024).[6]
The mental health pathway through which laughter yoga operates is now well-established in the research literature. Voluntary laughter activates the brain’s reward system, increasing dopamine output and promoting feelings of pleasure and motivation. Simultaneously, the social dimension of group laughter yoga sessions triggers oxytocin release, which strengthens feelings of connection and belonging — both factors that buffer against depression and anxiety. For patients experiencing isolation during prolonged illness or treatment, the group format of laughter yoga can address social wellbeing alongside psychological stress, making it a multi-dimensional mental health tool.
Mood improvement through structured humor and laughter is also a documented effect in older adults. Retirees who participated in eight 45-minute laughter yoga sessions showed meaningful improvements in happiness and hope compared to those who maintained daily routines without the intervention (National Institutes of Health (PMC), 2025).[4] The implications for aging populations — who face elevated rates of depression, social isolation, and anxiety — are significant and warrant broader clinical adoption.
Laughter Yoga Benefits for Physical Health and Immunity
Laughter yoga benefits extend well beyond the psychological domain, producing documented improvements in cardiovascular function, metabolic health, pulmonary capacity, and immune response across multiple patient populations. A 2025 study on adolescent girls found that eight weeks of laughter yoga training improved a comprehensive range of physiological markers — making it one of the most thorough demonstrations of the practice’s physical health potential published to date.
The cardiovascular findings from this research are particularly notable. After eight weeks of laughter yoga, participants showed decreased resting heart rate and reduced systolic and diastolic blood pressure, alongside increased stroke volume and cardiac output (National Institutes of Health (PMC), 2025).[2] The lead research team explained the scope of these physical effects: “The findings of this study indicate that laughter yoga intervention, as a low-cost, safe, and noninvasive approach, can have significant positive effects on several physiological parameters in adolescent girls. These benefits include improvements in metabolic indicators (such as reduced fasting blood sugar, triglycerides, total cholesterol, and LDL levels, as well as increased HDL levels), cardiovascular function (including decreased heart rate and systolic and diastolic blood pressure, and increased stroke volume and cardiac output), and pulmonary function.” (National Institutes of Health (PMC), 2025).[2]
Pulmonary function improvements were also measured, with laughter yoga producing gains across FEV1, FVC, FEF25–75%, and FET indices after eight weeks of training (National Institutes of Health (PMC), 2025).[2] These respiratory benefits align with the physiological mechanics of the practice itself — sustained laughter causes vigorous diaphragmatic exercise, which strengthens respiratory muscles and increases lung capacity over time, similar to the effects seen in pranayama breathing practices.
Immune system enhancement is another well-documented physical laughter yoga benefit. A 2025 pediatric study found that laughter yoga increased salivary immunoglobulin A (IgA) levels — a key frontline marker of immune function — with a statistically significant p-value of less than 0.01 (National Institutes of Health (PMC), 2025).[3] Elevated IgA suggests improved mucosal immunity, which is the body’s first barrier against respiratory and gastrointestinal pathogens. For patients already managing immune compromise — such as those undergoing chemotherapy — even modest immune support from a zero-side-effect intervention has meaningful clinical value. The UCLA Health clinical commentary on laughter and older adults similarly identifies immune boosting and cardiovascular protection as two of laughter’s most significant physical health contributions.
Pain reduction is the physical laughter yoga benefit most directly relevant to clinical pain management. The endorphin release triggered by sustained laughter raises the pain threshold and produces a natural analgesic effect. This mechanism underpins the USC Norris Cancer Center findings referenced in the LaughMD research framework, where 91% of patients reported pain relief following humor-based interventions. For patients managing chronic pain or cancer-related pain, laughter yoga offers a non-pharmacological complement to existing analgesic protocols — one that reduces opioid dependence without introducing new risks.
How Is Laughter Yoga Used in Clinical and Healthcare Settings?
Laughter yoga is now applied across a range of clinical contexts — including oncology, pediatric care, provider wellness programs, and chronic pain management — with protocols adapted to each setting’s specific patient population and care goals. The growing body of peer-reviewed evidence has moved laughter yoga from the category of complementary curiosity into a recognized, evidence-informed nursing and clinical intervention.
In pediatric settings, a 2025 systematic review found that laughter yoga contributed to meaningful reductions in anxiety and stress levels in children, with statistically significant results (p < 0.05), and was also reported to alleviate pain, fatigue, and burnout while enhancing hope and overall happiness (National Institutes of Health (PMC), 2025).[3] Study authors noted: “Findings indicated that laughter yoga contributed to a reduction in anxiety and stress levels in children (p < 0.05), while no statistically significant effect was observed on depression scores (p > 0.05). Additionally, the intervention was reported to alleviate pain, fatigue, and burnout while enhancing hope and overall happiness.”[3] These findings support incorporating laughter yoga into pediatric oncology, outpatient rehabilitation, and hospital-based child life programs.
For nursing staff and healthcare workers — populations facing historically high rates of burnout, compassion fatigue, and occupational stress — laughter yoga serves a dual purpose. A 2022 study confirmed that laughter yoga produced significant reductions in stress and burnout levels while increasing life satisfaction in nurses during the pandemic (National Institutes of Health (PMC), 2022).[7] Hospital administrators implementing staff wellness programs in US hospital systems can deploy laughter yoga as a structured break protocol requiring minimal resources. As demonstrated by Chapman University research referenced in the LaughMD framework, even a three-minute structured humor intervention can reduce provider stress by 13%.
Chronic pain programs represent a third major area of clinical application. The Mayo Clinic’s guidance on stress relief through laughter supports the integration of humor-based activities into pain management protocols. The AT Still University study in the LaughMD research base demonstrated a 60% reduction in chronic pain scores through comedy-based intervention, reinforcing the case for laughter yoga as a component of multi-modal pain treatment plans — particularly in settings where opioid deprescribing is a clinical priority. States with active deprescribing initiatives, including those following Michigan Governor’s Challenge protocols, have a direct policy rationale for adopting evidence-based non-pharmacological tools like laughter yoga.
Your Most Common Questions
What are the main laughter yoga benefits for people with chronic pain?
Laughter yoga benefits people with chronic pain primarily by triggering endorphin release, which raises the pain threshold and produces a natural analgesic effect without pharmaceutical side effects. Clinical research from AT Still University documented a 60% reduction in chronic pain scores among participants who completed a comedy-based intervention program based on the LaughMD framework. The diaphragmatic action of sustained laughter also reduces muscle tension — a common contributor to chronic pain cycles — and the associated reduction in cortisol lowers the inflammatory response that amplifies pain perception. For patients managing conditions such as fibromyalgia, cancer-related pain, or post-surgical recovery, laughter yoga offers a low-barrier, zero-cost complement to existing analgesic protocols. The practice requires no equipment, no minimum fitness level, and can be delivered in outpatient, home care, or inpatient settings. Importantly, the pain relief mechanism operates independently of whether the laughter is spontaneous or voluntary — the body responds to the physical act of laughing regardless of whether the patient finds something genuinely funny. This makes laughter yoga accessible even during periods of severe emotional distress, when generating genuine humor may be difficult for patients in pain.
How quickly do laughter yoga benefits appear after starting a program?
Laughter yoga benefits can appear within a single session for acute stress relief, while sustained physical health improvements — such as cardiovascular and metabolic changes — typically emerge after six to eight weeks of regular practice. The Chapman University research referenced in the LaughMD framework found that a three-minute structured humor intervention reduced provider stress by 13%, demonstrating that even very short exposures produce measurable acute effects. For longer-term physiological benefits, the 2025 study on adolescent girls showed that eight consecutive weeks of laughter yoga training produced significant improvements in blood pressure, blood glucose, cholesterol, and pulmonary function. Mental health improvements tend to develop progressively — a 2023 randomized trial in lung cancer patients showed large effect sizes for stress reduction (Cohen’s d = 1.087) and positive psychological capital gains (Cohen’s d = 0.692) over the course of the study intervention period (SAGE Journals, 2023).[1] For patients starting a laughter yoga program, a realistic expectation is that mood and stress improvements will begin quickly, while physical markers such as immune function, cardiovascular indices, and metabolic health will require consistent participation across weeks to months. Short sessions of twenty to thirty minutes, two to three times per week, represent a practical starting protocol for most healthcare settings.
Can laughter yoga benefits help healthcare workers reduce burnout?
Yes, laughter yoga benefits healthcare workers by producing documented reductions in stress, burnout, anxiety, and cortisol levels — all of which are key drivers of occupational fatigue in clinical environments. A 2024 study published in the National Institutes of Health PMC database examined laughter yoga as a nursing intervention and concluded that stress and burnout levels decreased, depression and anxiety improved, and salivary cortisol — a direct biomarker of physiological stress — fell significantly in groups where laughter yoga was practiced (National Institutes of Health (PMC), 2024).[6] A 2022 NIH-indexed study similarly confirmed that nurses who participated in laughter yoga during the pandemic reported meaningful improvements in life satisfaction and reductions in burnout (National Institutes of Health (PMC), 2022).[7] For hospital administrators, these findings have direct operational implications: staff burnout is linked to increased medical errors, higher absenteeism, and elevated turnover costs. A structured laughter yoga program — even a brief three-to-five-minute session at shift handover — represents a low-cost, evidence-backed investment in nurse retention and wellbeing. The LaughMD framework provides practical protocols drawn from Chapman University research, where provider stress dropped by 13% following a three-minute structured humor break. Healthcare institutions interested in implementing such programs can access guidance through LaughMD’s evidence-based resources and institutional licensing options.
Is laughter yoga safe for cancer patients receiving chemotherapy?
Laughter yoga is safe for most cancer patients receiving chemotherapy and has been specifically tested in this population, producing significant reductions in perceived stress and improvements in psychological resilience and exercise capacity. A 2023 pilot randomized trial in lung cancer chemotherapy patients found that laughter yoga produced a large reduction in perceived stress (Cohen’s d = 1.087) and meaningful gains in positive psychological capital (Cohen’s d = 0.692) and exercise capacity (Cohen’s d = 0.659), with no adverse events reported (SAGE Journals, 2023).[1] The USC Norris Cancer Center research documented in the LaughMD framework reported that 91% of oncology patients experienced pain relief following humor-based interventions, further supporting the safety and tolerability of laughter-based approaches in cancer care settings. As with any clinical intervention, oncology nurses and care teams should assess individual patient capacity before introducing laughter yoga — particularly for patients with severe respiratory compromise, post-surgical restrictions, or significant fatigue. Sessions can be adapted in length and intensity to match patient condition: even gentle guided laughter exercises lasting five to ten minutes can produce neurochemical benefits without physical strain. For patients undergoing treatment at cancer centers, laughter yoga represents one of the few non-pharmacological tools with direct evidence from their own patient population — a distinction that supports its inclusion in integrative oncology care plans.
Comparing Laughter Yoga to Other Mind-Body Interventions
Choosing the right mind-body intervention for a clinical or personal wellness setting depends on accessibility, evidence base, physical demands, and the specific outcomes being targeted. Laughter yoga sits among a range of established non-pharmacological approaches — including traditional yoga, meditation, and tai chi — but differs in several clinically meaningful ways that affect suitability for different patient populations.
| Intervention | Physical Demand | Humor/Social Element | Stress Reduction Evidence | Pain Relief Evidence | Immune Benefits Documented |
|---|---|---|---|---|---|
| Laughter Yoga | Low — adaptable to seated or supine | High — group laughter central to practice | Cohen’s d = 1.087 in cancer patients (SAGE Journals, 2023)[1] | 91% pain relief in oncology; 60% chronic pain reduction (LaughMD framework) | Yes — salivary IgA increase (p < 0.01) (PMC, 2025)[3] |
| Traditional Yoga | Moderate — requires mobility and balance | Low — typically individual or silent group | Well-documented across multiple RCTs | Moderate evidence in chronic pain populations | Some evidence — cortisol reduction pathway |
| Mindfulness Meditation | Very low — suitable for most patients | None — individual internal practice | Strong evidence across anxiety and depression studies | Moderate — primarily through stress pathway | Limited direct evidence |
| Tai Chi | Moderate — requires standing balance and coordination | Low — group format but non-verbal | Good evidence in older adult populations | Good evidence in osteoarthritis and fibromyalgia | Some evidence in older adults |
Laughter yoga’s most distinctive advantage over other mind-body interventions is its social laughter component combined with its minimal physical requirements — making it accessible to patients who cannot perform weight-bearing or balance-dependent exercises. Its documented immune benefits and cardiovascular improvements place it on par with more physically demanding practices when delivered consistently over six to eight weeks.
How LaughMD Brings Laughter Yoga Benefits to Healthcare
LaughMD was founded by Prof. Frank Chindamo, CHP — a former Saturday Night Live writer, USC, UCLA, and Chapman University professor, and Certified Humor Professional — to bridge the gap between the growing clinical evidence for laughter yoga benefits and practical implementation in healthcare settings. The LaughMD framework translates over 400 peer-reviewed studies on the health benefits of humor and laughter into accessible, actionable guidance for clinicians, patients, and healthcare institutions.
The flagship resource is the book “If Laughter is the Best Medicine, Let’s Use It as Medicine: The New Science of Humor in Healthcare” — available as a digital ebook, audiobook, deluxe audiobook, and print edition from the LaughMD Shop. The ebook ($30 USD) presents the mechanisms behind laughter yoga benefits — including cortisol reduction, endorphin release, and immune enhancement — alongside real-world clinical examples drawn from USC Norris Cancer Center, Chapman University, and AT Still University studies. The book’s practical “How To” prescription section gives both patients and providers step-by-step guidance for incorporating humor-based interventions into daily care routines.
For healthcare institutions considering staff wellness programs, the LaughMD framework demonstrates that even a three-minute structured humor break can reduce provider stress by 13% — a finding from Chapman University that directly informs the protocols outlined in the book. Hospital administrators and clinical educators can use the book as a continuing medical education reference, with APA-cited research chapters and over 100 embedded YouTube video links for evidence review.
The sister entity LaughMD, Inc. extends these benefits into a personalized digital wellness platform and app that curates comedy content tailored to individual patient preferences — enabling scalable delivery of laughter yoga benefits in home and clinical settings.
“Prof. Chindamo’s work provides a comprehensive and funny exploration of why humor belongs in the healing process. It’s an essential resource for practitioners and patients alike.” — Gina Ramsey, LICSW — Author, Writer, Speaker, Life Transformation Strategist at Minneapolis VA Healthcare System
“A compelling presentation of science and clinical application. This hilarious book proves how laughter can be a legitimate, data-backed medical intervention.” — Joseph B. Singer, MD — Senior Attending Physician at East Bay Community Action Program, Providence, RI
To learn more about the team behind LaughMD and the research foundation supporting the framework, visit the About LaughMD page. For bulk orders, institutional licensing, or media inquiries, contact LaughMD directly.
Practical Tips for Integrating Laughter Yoga Into Care
Healthcare providers and patients looking to act on the evidence for laughter yoga benefits can start with low-commitment protocols that fit existing clinical workflows. The following guidance draws from the research covered above and the practical recommendations in the LaughMD framework.
Start with short, structured sessions. Research shows that acute stress relief can occur in as little as three minutes of structured humor engagement, as demonstrated by the Chapman University provider study. For clinical settings, a three-to-five-minute laughter exercise at the start of a shift handover or before a group therapy session is a practical entry point that requires no formal training beyond basic familiarity with a few laughter yoga exercises.
Adapt intensity to patient capacity. Laughter yoga exercises can be performed seated, supine, or standing. Patients undergoing chemotherapy, recovering from surgery, or managing significant fatigue should begin with gentler guided breathing and light laughter exercises before progressing to more active sequences. The 2023 lung cancer trial demonstrated that even a modified laughter yoga protocol delivered measurable stress and psychological capital improvements in a population with significant physical limitations.
Use group formats to maximize social benefits. The neurochemical benefits of laughter yoga — including oxytocin release and social bonding — are amplified in group settings. Hospital wellness programs, outpatient group therapy sessions, and community care groups are natural venues for group laughter yoga, with the added benefit of reducing social isolation for patients managing long-term illness.
Track outcomes with validated measures. Clinicians implementing laughter yoga interventions should document baseline and follow-up scores using validated tools for perceived stress, mood, and pain — such as the Perceived Stress Scale, the Hospital Anxiety and Depression Scale, or numeric pain rating scales. This enables evidence-based refinement of the protocol and creates institutional data to support program continuation and funding.
Combine laughter yoga with existing non-pharmacological strategies. Laughter yoga works best as a complement — not a replacement — to conventional pain management and mental health care. Pairing it with mindfulness-based stress reduction, physical activity, or social connection programs can amplify the individual benefits of each intervention, creating a multi-modal approach to patient wellbeing that reduces reliance on pharmacological management.
Access academic-quality resources before implementing. The peer-reviewed evidence base for laughter yoga benefits is growing rapidly, with significant publications in 2023, 2024, and 2025. Staying current with the research — including through the latest academic literature on humor in healthcare — ensures that clinical protocols remain aligned with best evidence. The LaughMD ebook and audiobook provide a curated, clinician-accessible synthesis of this research in a format designed for busy healthcare professionals.
The Bottom Line
Laughter yoga benefits are no longer a matter of anecdote or optimistic conjecture — peer-reviewed research from 2023, 2024, and 2025 has established this practice as a measurably effective, non-pharmacological intervention for stress reduction, pain management, immune enhancement, and cardiovascular health. From lung cancer patients reporting dramatic drops in perceived stress to adolescent girls showing improved cholesterol and blood pressure profiles after eight weeks of practice, the evidence base is broad, rigorous, and clinically actionable.
For healthcare providers managing patient pain, burnout, or treatment-related anxiety — and for patients seeking natural, side-effect-free approaches to improving their wellbeing — laughter yoga deserves a place alongside other established mind-body interventions in the clinical toolkit. LaughMD makes that case with authority, humor, and a comprehensive library of peer-reviewed research translated into practical guidance.
To explore the full science of humor in healthcare and get a step-by-step implementation guide, visit the LaughMD Shop to access the ebook, audiobook, or print edition of “If Laughter is the Best Medicine, Let’s Use It as Medicine.” For institutional inquiries, bulk orders, or partnership discussions, reach out at [email protected] or through the LaughMD contact form.
Sources & Citations
- The Effects of Laughter Yoga on Perceived Stress, Positive Psychological Capital, and Exercise Capacity in Lung Cancer Chemotherapy Patients: A Pilot Randomized Trial. SAGE Journals, 2023.
https://journals.sagepub.com/doi/10.1177/15347354231218271 - The effect of 8 weeks of laughter yoga training on cardiorespiratory and metabolic indices in adolescent girls. National Institutes of Health (PMC), 2025.
https://pmc.ncbi.nlm.nih.gov/articles/PMC12768185/ - The therapeutic power of laughter yoga in pediatric health. National Institutes of Health (PMC), 2025.
https://pmc.ncbi.nlm.nih.gov/articles/PMC12764003/ - Retirees laughter yoga happiness and hope study. National Institutes of Health (PMC), 2025.
https://pmc.ncbi.nlm.nih.gov/articles/PMC12448539/ - The Mental Health Benefits of Laughter Yoga. Grand Rising Behavioral Health, 2026.
https://www.grandrisingbehavioralhealth.com/blog/the-mental-health-benefits-of-laughter-yoga - The impact of laughter yoga as a NIC on health parameters in nurses and healthcare workers. National Institutes of Health (PMC), 2024.
https://pmc.ncbi.nlm.nih.gov/articles/PMC11520822/ - Laughter yoga stress and burnout in nurses during the pandemic. National Institutes of Health (PMC), 2022.
https://pmc.ncbi.nlm.nih.gov/articles/PMC9254653/
