Calm Science

Calm is committed to developing evidence-based sleep and mindfulness resources, informed by rigorous scientific research.

The Calm Science Team

Our team works closely with a group of distinguished academic researchers and clinicians who guide and review our efforts, to ensure our offerings are scientifically sound and effective.

Meet the Director of Calm Science

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Jennifer Huberty, PhD

Jennifer Huberty is the Director of Science at Calm. She spent 18+ years as a research faculty, nine of those as an Associate Professor at Arizona State University in the College of Health Solutions. She holds three affiliations; she Associate Professor and Research Scholar in the Department of Obstetrics and Gynecology at University of Arizona's College of Medicine, Adjunct Professor of Medicine at Mayo Clinic College of Medicine in Scottsdale, Arizona, and Mays Cancer Center/MD Anderson in San Antonio, Texas.

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Meet the Team

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Jehan Sparks, PhD

Dr. Jehan Sparks is a Behavior Research Scientist at Calm. She has over ten years of experience leading academic and applied research projects, including large-scale behavior change interventions and controlled laboratory studies.

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Hallie Espel-Huynh

Dr. Hallie Espel-Huynh is a Behavior Research Scientist at Calm and a clinical psychologist by training. Her research aims to maximize the positive impact of digital and behavioral health interventions in the community.

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Megan Puzia, MS

Megan Puzia is a research analyst for Calm. She received her Masters in Clinical Psychology from the University of Utah, where she researched quantitative methods and emotional regulation in vulnerable populations.

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Breanna Banks

Breanna Banks is a Research Project Manager for Calm. She has over 6 years of experience working on research and evidence-based health promotion programs.

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Scientific Advisory Board

The purpose of Calm’s SAB is to inform content and product development by conducting research, reviewing the scientific literature, and building partnerships with other healthcare providers and researchers.

The Scientific Advisory Board is directed by Jennifer Huberty, PhD and consists of the following members:

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Linda Larkey, PhD

Dr. Linda Larkey is full professor at the Edson College of Nursing and Health Innovation at Arizona State University and Professor of Medicine/Adjunct Faculty at the Mayo Clinic Cancer Center.

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Monica Baskin, PhD

Monica L. Baskin, PhD, Professor of Preventive Medicine at the University of Alabama at Birmingham School of Medicine and Associate Director for Community Outreach and Engagement at the O’Neal Comprehensive Cancer Center. Dr. Baskin is a psychologist and behavioral scientist with research addressing minority health disparities. Her research utilizes community-engaged methods to better understand individual, family, and environmental factors associated with cancer prevention and control, and other chronic conditions.

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Chad Stecher, PhD

Chad Stecher, PhD is an Assistant Professor in the College of Health Solutions at Arizona State University. Dr. Stecher is a behavioral health economist and his research separately examines the decision-making processes of physicians and patients.

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Ana-Maria Vranceanu, PhD

Dr. Vranceanu is a clinical health psychologist and Director of the Integrated Brain Health Clinical and Research Program within the Department of Psychiatry at Massachusetts General Hospital. She is also an Associate Professor of Psychology at Harvard Medical School.

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Calm Research Publications

A Novel Educational Control Group Mobile App for Meditation Interventions: Single-Group Feasibility Trial

Huberty J, Eckert R, Puzia M, Laird B, Larkey L, Mesa R (2020)

JMIR Form Res

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Associations Between Rural or Urban Status, Health Outcomes and Behaviors, and COVID-19 Perceptions Among Meditation App Users: Longitudinal Survey Study

Bhuiyan N, Puzia M, Stecher C, Huberty J (2021)

JMIR Mhealth Uhealth

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Can a meditation app help my sleep? A cross-sectional survey of Calm users

Huberty, J., Puzia, M. E., Larkey, L., Vranceanu, A. M., & Irwin, M. R. (2021)

PloS one

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Describing the Use of a Mindfulness-Based App for Sleep and Mental Well-Being, Across Age, in Children

Neher, T., Green, J., Puzia, M. et al. (2021)

Child Youth Care Forum

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Does persistent meditation and physical activity mediate the relationship between perceptions of COVID-19 and and mental health? A cross-sectional survey of mobile app users in the United States

Green, J., Huberty, H., Puzia, M., & Stecher, C. (2020)

Research Gate

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Evaluation of Mood Check-in Feature for Participation in Meditation Mobile App Users: Retrospective Longitudinal Analysis

Huberty J, Green J, Puzia M, Stecher C (2021)

JMIR Mhealth Uhealth

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Feasibility of Using a Mobile App for Stress in Middle-Aged Men and Women

Laird BM, Puzia M, Larkey L, Ehlers D, Huberty J. (2021)

JMIR Formative Research

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Identifying App-Based Meditation Habits and the Associated Mental Health Benefits: Longitudinal Observational Study

Stecher, C., Berardi, V., Fowers, R., Christ, J., Chung, Y., & Huberty, J. (2021)

Journal of medical Internet research

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Leveraging a Consumer-Based Product to Develop a Cancer-Specific Mobile Meditation App: Prototype Development Study

Huberty J, Bhuiyan N, Neher T, Joeman L, Mesa R, Larkey L (2022)

JMIR Formative Research

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A mindfulness meditation mobile app improves depression and anxiety in adults with sleep disturbance: A secondary analysis of a randomized controlled trial

Huberty, J., Puzia, M., Green, J., Vlisides-Henry, R., Larkey, L., Irwin, M., & Vranceanu (2021)

General Hospital Psychiatry

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Mindfulness effects during Coronavirus Disease 2019 (COVID-19) pandemic in outpatient obstetrics/gynecology patients: A randomized controlled trial

Smith, R., Mahnert, N., Foote, J., Saunders, K., Mourad, J., & Huberty, J. (2021)

Obstet Gynecol

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The Effect of Meditation and Physical Activity on the Mental Health Impact of COVID-19–Related Stress and Attention to News Among Mobile App Users in the United States: Cross-sectional Survey

Green J, Huberty J, Puzia M, Stecher C (2021)

JMIR Ment Health

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Using Personalized Anchors to Establish Routine Meditation Practice with a Mobile App: Randomized Controlled Trial

Stecher, C., Sullivan, M., & Huberty, J. (2021)

JMIR Mhealth Uhealth

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Usage patterns of the Calm meditation app among people with cardiovascular disease

Luberto, C.M., Huberty, J., Puzia, M.E., & Vranceanu, A.M. (2021)


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Testing a mindfulness meditation mobile app for the treatment of sleep-related symptoms in adults with sleep disturbance: A randomized controlled trial

Huberty, J, Green, J., Puzia, M.E., Larkey, L., Laird, B., Vranceanu, A.M., Vlisides-Henry, R.D., & Irwin, M.R. (2021)


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Mental health and meditation practices of pregnant women during COVID-19

Huberty, J., Puzia, M.E., Green, J., & Stecher, C. (2021)

Obstetrics and Gynecology Research, 4, 001-006

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Use of the consumer-based meditation app Calm for sleep disturbances: Cross-sectional survey study

Huberty, J., Puzia, M.E., Larkey, L., Irwin, M.R., & Vranceanu, A.M. (2020)

JMIR Formative Research

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Parents’ perceptions of their children’s engagement in a consumer-based meditation mobile app: Cross-sectional survey study

Puzia, M.E., Laird, B., Green, J., Huberty, J. (2020)

Journal of Internet Medical Research - Pediatrics and Parenting

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Associations between global mental health and response to an app-based meditation intervention in myeloproliferative neoplasm patients

Puzia, M.E., Huberty, J., Eckert, R., Larkey, L., Mesa, R. (2020)

Integrative Cancer Therapies

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Characteristics and usage patterns among 12,151 paid subscribers of the Calm meditation app: Cross-sectional survey

Huberty, J., Vranceanu, A.M., Carney, C., Breus, M., Gordon, M., Puzia, M.E. (2019)

Journal of Medical Internet Research - mHealth uHealth

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Cancer patients’ and survivors’ perceptions of the Calm app: cross-sectional descriptive survey

Huberty, J., Puzia, M.E., Eckert, R., Larkey, L. (2019)

Journal of Medical Internet Research - Cancer

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Experiences of using a consumer-based mobile meditation app to improve fatigue in myeloproliferative patients: Qualitative study

Huberty, J., Eckert, R., Larkey, L. Joeman, L., Mesa, R. (2019)

Journal of Medical Internet Research - Cancer

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Smartphone-based meditation for myeloproliferative neoplasm patients: A feasibility study to inform future trials

Huberty, J., Eckert, R., Larkey, L., Kurka, J., Rodriguez, S., Yoo, W., Mesa, R. (2019)

Journal of Medical Internet Research - Formative Research

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Testing the efficacy of a mindfulness meditation mobile app, Calm, to reduce stress among college students: A randomized controlled trial

Huberty, J., Green, J., Glissman, C., Larkey, L., Puzia, M.E., Lee, C. (2019)

Journal of Medical Internet Research - mHealth uHealth

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​​Call for research proposals to partner with the Calm app

The goal of this call is to find investigators conducting research related to Calm’s priorities and develop partnerships to advance the scientific evidence for Calm. Partnerships may include discounted or free memberships for study participants and access to participants’ app-usage data.

The proposed research must be related to the following priorities:

  1. Engagement strategies to improve adherence to the Calm app
    1. Identify and evaluate the impact of integrating evidence-based behavioral strategies within the Calm app on user adherence (i.e., adaptive trial designs)
    2. Big data analyses of existing Calm data
      1. High-frequency time-series analyses using Calm app-usage data
      2. Machine learning/AI models of Calm usage patterns over time
  2. Evaluate the impact of using Calm on mental and physical health outcomes in a variety of populations. We have a particular interest in children’s and/or health disparities research
    1. Testing the feasibility of Calm use with populations not yet tested
    2. Testing efficacy of Calm with populations and outcomes not yet tested.
    3. Exploring the optimal dose of Calm to improve mental and physical health outcomes
    4. Exploring mechanisms through which Calm meditations and/or other Calm components (e.g., Daily Move, Sleep Stories, Calm Music) improves mental and physical health
  3. Evaluate process and outcomes measures in workplaces using Calm
    1. We are most interested in productivity, return on investment, and burnout
  4. Conducting trials that include comprehensive multi-modal measurements beyond self-report (e.g., neurophysiological, biomarkers)

Calm’s Scientific Advisory Board will review applications and invite the strongest applicants to submit an official proposal.

Investigators must have:

  • A strong research team, including a statistician, with experience conducting behavioral research, preferably mHealth interventions
  • An affiliation with a US institution with an IRB that will approve the study
  • Funding necessary to support the study

We recommend that applicants review the published literature related to Calm and mHealth interventions to assist in the development of their proposals (i.e., adding to the science/literature).


Apply to do research with Calm. If we are interested in your idea, you could receive free or reduced rate memberships and access to de-identified objective user data for consenting participants.

Submit Your Application

Scientific Advisory Board reviews applications monthly. Please submit your application by the 2nd Wednesday of the month and the SAB will be in touch.

Ongoing Research Studies Using Calm

Currently recruiting

Effects of Calm on sleep disturbance in cancer patients

Currently enrolling cancer patients who have difficulty sleeping

Check your eligibility

Study now closed, data analysis ongoing

Calm Pregnancy: Feasibility of a smart-phone meditation application for mindfulness-based prenatal stress reduction

Enrollment completed, ongoing data collection

Effects of novel COVID-19 on Calm users' mental health and well-being

Enrollment completed, ongoing data collection

Mindfulness Takes Practice: mHealth Tools for Building Persistent Mindfulness Meditation Habits

Enrollment completed, ongoing data collection

Testing the feasibility and preliminary effects of a six-week online program, “Calm Sleep Coaching,” in adults with sleep disturbance

Enrollment completed, ongoing data collection

Feasibility and preliminary effects of a mobile app on sleep disturbance

Enrollment and data collection completed, ongoing data analysis

Sample of findings

When using Calm, participants report a boost in overall well-being*

84% Saw improvements in mental health

81% Reported less stress

73% Expressed higher sleep quality

*Based on a study using survey data from general Calm subscribers who used the app more than five times per week