At Practice by Erica, our approach is grounded in science, not trends.
Every practice on our platform — from yoga and breathwork to meditation, sleep practices, and sound — is supported by a growing body of peer-reviewed research demonstrating measurable benefits for mental, emotional, and physical health.

 

This resource hub is designed to share the scientific evidence behind nervous-system-regulating practices and how they can support well-being across a range of modern health challenges.
The publications listed below explore how mind–body practices impact the nervous system, brain function, stress physiology, emotional regulation, and overall resilience.

 

Disclaimer

The information provided here is for educational purposes only and is not intended as medical advice.
Practices offered through Practice by Erica are designed to support overall well-being and should not replace professional medical care.

 
 
 
 
 

  • Anxiety is often linked to nervous system dysregulation, elevated cortisol levels, and reduced parasympathetic activity.

    Research shows that practices such as yoga, meditation, and controlled breathing can:

    • Reduce symptoms of generalized anxiety

    • Improve autonomic nervous system balance

    • Enhance emotional regulation and cognitive flexibility

  • Saeed SA, Antonacci DJ, Bloch RM. Exercise, yoga, and meditation for depressive and anxiety disorders. Am Fam Physician. 2010 Apr 15;81(8):981-6. PMID: 20387774

  • Saeed SA, Cunningham K, Bloch RM. Depression and Anxiety Disorders: Benefits of Exercise, Yoga, and Meditation. Am Fam Physician. 2019 May 15;99(10):620-627. PMID: 31083878.

  • Systematic review to explore the effect of yoga on anxiety in adults (linked here)

  • Nanthakumar C (2020), "Yoga for anxiety and depression – a literature review". The Journal of Mental Health Training, Education and Practice, Vol. 15 No. 3 pp. 157–169, doi: https://doi.org/10.1108/JMHTEP-09-2019-0050

  • Burnout is increasingly recognized as a state of chronic nervous system overload, often driven by prolonged stress, lack of recovery, and emotional depletion.

    Research suggests that nervous-system-focused practices can:

    • Reduce emotional exhaustion and mental fatigue

    • Improve stress recovery and resilience

    • Support focus, clarity, and sustained performance

    • Help regulate the stress response in high-demand environments

    Relevant research areas include:

    • Workplace stress and burnout interventions

    • Yoga and mindfulness in professional populations

    • Stress recovery and parasympathetic activation

    • Nervous system regulation and performance sustainability

  • Hilcove K, Marceau C, Thekdi P, Larkey L, Brewer MA, Jones K. Holistic Nursing in Practice: Mindfulness-Based Yoga as an Intervention to Manage Stress and Burnout. Journal of Holistic Nursing. 2020;39(1):29-42. doi:10.1177/0898010120921587

  • Korkmaz A, Bernhardsen GP, Cirit B, Koprucu Suzer G, Kayan H, Biçmen H, Tahra M, Suner A, Lehto SM, Sag D, Saatcioglu F. Sudarshan Kriya Yoga Breathing and a Meditation Program for Burnout Among Physicians: A Randomized Clinical Trial. JAMA Netw Open. 2024 Jan 2;7(1):e2353978. doi: 10.1001/jamanetworkopen.2023.53978. PMID: 38294813; PMCID: PMC10831575.

  • Vikas Upadhyay, Apar Avinash Saoji, Anita Verma, Vartika Saxena, Development and validation of 20-min yoga module for reducing burnout among healthcare worker(s), Complementary Therapies in Clinical Practice, Volume 46, 2022, 101543, ISSN 1744-3881, https://doi.org/10.1016/j.ctcp.2022.101543

  • Bhardwaj P, Pathania M, Bahurupi Y, Kanchibhotla D, Harsora P, Rathaur VK. Efficacy of mHealth aided 12-week meditation and breath intervention on change in burnout and professional quality of life among health care providers of a tertiary care hospital in north India: a randomized waitlist-controlled trial. Front Public Health. 2023 Nov 1;11:1258330. doi: 10.3389/fpubh.2023.1258330. PMID: 38026380; PMCID: PMC10646346.

  • At the core of all PBE practices is nervous system regulation — the ability to move fluidly between states of activation and rest.

    Research demonstrates that consistent mind–body practices can:

    • Improve autonomic nervous system balance

    • Increase vagal tone and heart rate variability

    • Enhance resilience to stress

    • Support long-term mental and physical health

    Relevant research areas include:

    • Autonomic nervous system function

    • Polyvagal theory and regulation practices

    • Breathwork and vagal nerve stimulation

    • Mind–body practices and resilience

  • Breit S, Kupferberg A, Rogler G, Hasler G. Vagus Nerve as Modulator of the Brain-Gut Axis in Psychiatric and Inflammatory Disorders. Front Psychiatry. 2018 Mar 13;9:44. doi: 10.3389/fpsyt.2018.00044. PMID: 29593576; PMCID: PMC5859128.

  • Kilian Abellaneda-Pérez, Ruby M. Potash, Alvaro Pascual-Leone, Matthew D. Sacchet, Neuromodulation and meditation: A review and synthesis toward promoting well-being and understanding consciousness and brain, Neuroscience & Biobehavioral Reviews, Volume 166, 2024, 105862, ISSN 0149-7634, https://doi.org/10.1016/j.neubiorev.2024.105862

  • Idil Sezer, Matthew D. Sacchet, Advanced and long-term meditation and the autonomic nervous system: A review and synthesis, Neuroscience & Biobehavioral Reviews, Volume 173, 2025, 106141, ISSN 0149-7634, https://doi.org/10.1016/j.neubiorev.2025.106141

  • Nivethitha L, Mooventhan A, Manjunath NK. Effects of Various Prāṇāyāma on Cardiovascular and Autonomic Variables. Anc Sci Life. 2016 Oct-Dec;36(2):72-77. doi: 10.4103/asl.ASL_178_16. PMID: 28446827; PMCID: PMC5382821

 
 
 
 
 

  • Depression is associated with changes in brain chemistry, inflammation, and altered stress-response systems.

    Scientific studies indicate that mind–body practices may:

    • Improve mood and emotional stability

    • Support neuroplasticity and brain health

    • Reduce depressive symptoms when used alone or alongside conventional treatments

    • Improve sleep and energy regulation, both critical factors in mood disorders

    Relevant research areas include:

    • Yoga and mindfulness-based interventions for depression

    • Meditation and changes in brain structure and function

    • Breathwork and emotional regulation

    • Movement-based practices and mental health outcomes

  • Saeed SA, Cunningham K, Bloch RM. Depression and Anxiety Disorders: Benefits of Exercise, Yoga, and Meditation. Am Fam Physician. 2019 May 15;99(10):620-627. PMID: 31083878

  • González-Valero G, Zurita-Ortega F, Ubago-Jiménez JL, Puertas-Molero P. Use of Meditation and Cognitive Behavioral Therapies for the Treatment of Stress, Depression and Anxiety in Students. A Systematic Review and Meta-Analysis. Int J Environ Res Public Health. 2019 Nov 10;16(22):4394. doi: 10.3390/ijerph16224394. PMID: 31717682; PMCID: PMC6888319

  • Cramer, H., Lauche, R., Langhorst, J. and Dobos, G. (2013), YOGA FOR DEPRESSION: A SYSTEMATIC REVIEW AND META-ANALYSIS. Depress Anxiety, 30: 1068-1083. https://doi.org/10.1002/da.22166

  • Sleep disturbances and chronic fatigue are often linked to stress, anxiety, and dysregulation of the nervous system.

    Scientific literature supports that practices such as meditation, breathwork, and restorative yoga can:

    • Improve sleep quality and duration

    • Reduce insomnia symptoms

    • Support recovery and energy regulation

    • Improve overall nervous system balance

    Relevant research areas include:

    • Mindfulness and sleep quality

    • Breathing practices and relaxation response

    • Yoga for insomnia and fatigue

    • Stress reduction and recovery physiology

  • Jennifer Huberty, Megan E. Puzia, Jeni Green, Robert D. Vlisides-Henry, Linda Larkey, Michael R. Irwin, Ana-Maria Vranceanu, A mindfulness meditation mobile app improves depression and anxiety in adults with sleep disturbance: Analysis from a randomized controlled trial, General Hospital Psychiatry, Volume 73, 2021, Pages 30-37, ISSN 0163-8343, https://doi.org/10.1016/j.genhosppsych.2021.09.004

  • Wang WL, Chen KH, Pan YC, Yang SN, Chan YY. The effect of yoga on sleep quality and insomnia in women with sleep problems: a systematic review and meta-analysis. BMC Psychiatry. 2020 May 1;20(1):195. doi: 10.1186/s12888-020-02566-4. PMID: 32357858; PMCID: PMC7193366

  • Rusch HL, Rosario M, Levison LM, Olivera A, Livingston WS, Wu T, Gill JM. The effect of mindfulness meditation on sleep quality: a systematic review and meta-analysis of randomized controlled trials. Ann N Y Acad Sci. 2019 Jun;1445(1):5-16. doi: 10.1111/nyas.13996. Epub 2018 Dec 21. PMID: 30575050; PMCID: PMC6557693

  • Panjwani U, Dudani S, Wadhwa M. Sleep, Cognition, and Yoga. Int J Yoga. 2021 May-Aug;14(2):100-108. doi: 10.4103/ijoy.IJOY_110_20. Epub 2021 May 10. PMID: 34188381; PMCID: PMC8191228

  • Chronic stress is associated with sustained cortisol elevation, nervous system overactivation, and reduced parasympathetic recovery.

    Research shows that practices such as yoga, meditation, and controlled breathing can:

    • Lower perceived stress levels

    • Improve autonomic nervous system balance

    • Enhance emotional regulation and cognitive flexibility

  • Goyal M, Singh S, Sibinga EM, Gould NF, Rowland-Seymour A, Sharma R, Berger Z, Sleicher D, Maron DD, Shihab HM, Ranasinghe PD, Linn S, Saha S, Bass EB, Haythornthwaite JA. Meditation programs for psychological stress and well-being: a systematic review and meta-analysis. JAMA Intern Med. 2014 Mar;174(3):357-68. doi: 10.1001/jamainternmed.2013.13018. PMID: 24395196; PMCID: PMC4142584.

  • Fincham GW, Strauss C, Montero-Marin J, Cavanagh K. Effect of breathwork on stress and mental health: A meta-analysis of randomised-controlled trials. Sci Rep. 2023 Jan 9;13(1):432. doi: 10.1038/s41598-022-27247-y. PMID: 36624160; PMCID: PMC9828383.

  • Bentley TGK, D'Andrea-Penna G, Rakic M, Arce N, LaFaille M, Berman R, Cooley K, Sprimont P. Breathing Practices for Stress and Anxiety Reduction: Conceptual Framework of Implementation Guidelines Based on a Systematic Review of the Published Literature. Brain Sci. 2023 Nov 21;13(12):1612. doi: 10.3390/brainsci13121612. PMID: 38137060; PMCID: PMC10741869.

  • Michaela C. Pascoe, David R. Thompson, Chantal F. Ski, Yoga, mindfulness-based stress reduction and stress-related physiological measures: A meta-analysis, Psychoneuroendocrinology, Volume 86, 2017, Pages 152-168, ISSN 0306-4530, https://doi.org/10.1016/j.psyneuen.2017.08.008.

 
 
 
 
 
 

Our Commitment to Evidence-Based Practice

We continually review emerging research to inform the development of our practices and educational content.
Our goal is to bridge ancient wisdom and modern science, offering accessible tools that are both intuitive and evidence-backed.

This resource hub will continue to grow as new research emerges.