We seek out the best and the brightest minds–experts, research scientists and practitioners who share our passion for improving people’s lives–to create Happify’s tracks. Our list of experts continues to grow. Here is a sample of some of our contributors:

Our experts


photo of Derrick Carpenter

Derrick has more than a decade of experience as a positive psychology instructor and coach. Previously, he worked an instructor for the Penn Resilience Program where he led resilience and positive psychology trainings for the U.S. Army, Oklahoma City Thunder, and the University of Texas. Incorporating experiential elements ranging from rowing to urban adventure races, Derrick has taught leadership and high-performance teamwork for Nike, Intel, McKinsey, and Columbia Business School. Additionally, he has facilitated workshops and coached individuals on personality and workplace dynamics at NASA, Morgan Stanley, and LinkedIn. Derrick holds a B.S. in Math from MIT and a Master of Applied Positive Psychology (M.A.P.P.) from the University of Pennsylvania.

Sonja Lyubomirsky, Ph.D.

photo of Sonja Lyubomirsky, Ph.D

Dr. Lyubomirsky is Professor of Psychology at the University of California, Riverside and author of the bestseller The How of Happiness and The Myths of Happiness, translated in 23 and 16 countries, respectively. Her research—on the possibility of lastingly increasing happiness—has received many honors, including the Templeton Positive Psychology Prize and a Science of Generosity grant.

Barbara Fredrickson, Ph.D.

photo of Barbara Fredrickson, Ph.D.

Among the most highly cited scholars in psychology, Dr. Fredrickson has published more than 100 peer-reviewed articles and her books, Positivity and Love 2.0 have been translated into more than a dozen languages. She is Professor of Psychology and Neuroscience and Director of the Positive Emotions and Psychophysiology Lab at UNC Chapel Hill, and is beginning her term as President of the International Positive Psychology Association.

Shawn Achor

photo of Shawn Achor

Where do we start? Shawn wrote international bestseller The Happiness Advantage. The same research made the cover of the Harvard Business Review, and has drawn more than 4 million views to his TEDx talk. The translation of Shawn’s wisdom into a Happify track turns his brilliant ideas into positive action.

Judith Moskowitz, Ph.D., M.P.H.

photo of Judith Moskowitz, Ph.D., M.P.H.

Judith is a Professor of Medical Social Sciences at Northwestern University Feinberg School of Medicine and the Director of Research at the Northwestern Osher Center for Integrative Medicine. Trained as a social psychologist, she studies the impact of positive emotion on adjustment to health-related and other life stress. She is the Principal Investigator of several NIH-funded trials of an intervention designed to increase positive emotion and improve psychological and physical well‑being.

Caroline Adams Miller, M.A.P.P.

photo of Caroline Adams Miller, M.A.P.P.

Caroline is one of the world’s leading positive psychology experts on Goals & Grit™. She is passionate about helping people get more grit, achieve their goals, and find happiness. She has spent more than 30 years helping individuals, leaders and companies to achieve their goals. Caroline has a Masters of Applied Psychology from the University of Pennsylvania and graduated magna cum laude from Harvard. She is the author of six books, including Getting Grit (Sounds True, 2017) and Creating Your Best Life (Sterling, 2009). Caroline’s work has been featured in BBC World News, The New York Times, The Washington Post, NBC, NPR and CNN.

Afton Hassett, Psy.D.

photo of Afton Hassett, Psy.D..

Dr. Hassett is a licensed clinical psychologist and Associate Research Scientist in the Department of Anesthesiology at the University of Michigan. As a principal investigator at the Chronic Pain & Fatigue Research Center, she conducts highly collaborative and innovative research related to exploring the role of cognitive, affective and behavioral factors in chronic pain populations.

Kwabena “Bobo” Blankson, M.D.

photo of Kwabena “Bobo” Blankson, M.D.

A graduate of Harvard and the Yale School of Medicine, Doctor Bobo studied neurodegenerative diseases, including the effects of positive environmental enrichment in Huntington's Disease and the role of spirituality in Parkinson's disease. His areas of expertise include depression, anxiety, eating disorders, and chronic headaches. He has published in peer-reviewed journals and been featured in,, and

Emma Seppala, Ph.D.

photo of Emma Seppala, Ph.D.

Dr. Seppala is science director of the Center for Compassion and Altruism Research and Education at Stanford University, author of The Happiness Track, and a leading expert on health psychology, wellbeing, and resilience. She founded the popular news site Fulfillment Daily and holds degrees from Yale, Columbia, and Stanford. Originally from Paris, France, she speaks French, English, German, Spanish & Mandarin Chinese.

John Gottman, Ph.D.

photo of John Gottman Ph.D.

Dr. John Gottman is world-renowned for his work that predicts marital stability and divorce. He was voted as one of the top 10 Most Influential Therapists of the past quarter century by the Psychotherapy Networker and has spent more than 40 years working with thousands of couples. He is the author of dozens of books, including the bestseller The Seven Principles for Making Marriage Work.

Our experts

Sharon Salzberg

photo of Sharon Salzberg

A meditation teacher and New York Times best-selling author, Sharon is the co-founder of the Insight Meditation Society in Barre, MA and has played a crucial role in bringing Asian meditation practices to the West. Sharon has been a student of meditation since 1971, guiding retreats worldwide since 1974. She is the author of many books including Real Happiness and Lovingkindness.

Michael Norton, Ph.D.

photo of Michael Norton Ph.D.

Michael Norton is a professor at the Harvard Business School and the co-author of Happy Money: The Science of Smarter Spending. Dr. Norton understands, on a deep level what truly brings lasting happiness—and that insight is captured in his expert track. In 2012, he made Wiredmagazine’s Smart List as one of "50 People Who Will Change the World."

Denise Clegg, M.A.P.P.

photo of Denise Clegg, M.A.P.P.

Denise launched the Penn Positive Neuroscience Project and directed the Penn Center for Neuroscience & Society after receiving her Master of Applied Positive Psychology there. She also served on the Penn Resilience training team and led workshops on the science and experience of mindfulness meditation for professional and community groups. Her work with NGOs is dedicated to advancing research and policies with a positive social impact and that nurture resilience within individuals and systems.

Ryan Niemiec, Psy.D.

photo of Ryan Niemiec Psy.D..

A licensed psychologist, certified coach, and international workshop leader, Ryan is an adjunct professor at Xavier University and adjunct faculty at the University of Pennsylvania. He has led several hundred mindfulness meditation groups over the last decade, and is the creator of Mindfulness-Based Strengths Practice (MBSP). He is Education Director of the VIA Institute on Character and author of a few books, including Mindfulness and Character Strengths: A Practical Guide to Flourishing

Margarita Tarragona, Ph.D.

photo of Margarita Tarragona Ph.D.

A psychologist, coach, clinician, and organizational consultant who specializes in personal and relational transformation, Dr. Tarragona incorporates scientific findings on flourishing from positive psychology, with collaborative and narrative ways of working with clients to generate dialogue and expand their life stories. She has a Ph.D. in Psychology from the University of Chicago and is the author of Positive Identities: Positive Psychology and Narrative Practices.

Roberta Lee, M.D.

photo of Roberta Lee, M.D.

Stress can rob us of happiness, so we're thrilled that Dr. Lee, a true authority on the subject, has put together one of our most popular tracks. She's the author of The Superstress Solution and an integrative medicine primary care physician at the University of Arizona Medical Center's Pantano Clinic. Before that she was the vice chair of the Department of Integrative Medicine at Beth Israel Hospital in NYC.

Elizabeth A. Jackson, M.D., M.P.H.

photo of Elizabeth A. Jackson M.D., M.P.H.

Elizabeth is an Associate Professor of Medicine and Director of the Women’s Heart Program at the University of Michigan. She is a fellow of the American College of Cardiology and a Fellow of the American Heart Association. Dr. Jackson is a health services researcher with expertise in eHealth, physical activity, cardiovascular prevention, behavioral modification, and women’s health. Her expertise relates to implementation and clinical trial design related to eHealth; cardiovascular prevention; and health behavior change.

Philip Zimbardo, Ph.D.

photo of Philip Zimbardo, Ph.D.

Dr. Zimbardo, professor emeritus at Stanford University, is a world-renowned scholar, educator, and researcher. Among his more than 500 publications is the bestseller The Lucifer Effect, as well as textbooks including Psychology: Core Concepts. He is the co-developer of Time Perspective Therapy, as well as co-author of The Time Cure: Overcoming PTSD with the New Psychology of Time Perspective Therapy. He is also the founder of The Heroic Imagination Project, a world-wide nonprofit teaching people how to take wise and effective action in challenging situations.

Itai Ivtzan, Ph.D.

photo of Itai Ivtzan Ph.D.

Dr. Ivtzan is a positive psychologist, senior lecturer, and the program leader of M.A.P.P. (Masters in Applied Positive Psychology) at the University of East London. His main areas of research are positive psychology, mindfulness, and spirituality. He's the author of Awareness is Freedom: The Adventure of Psychology and Spirituality and co-author of Mindfulness in Positive Psychology: The Science of Meditation and Wellbeing.

Jared Minkel, Ph.D.

photo of Jared Minkel, Ph.D.

Dr. Minkel is a clinical psychologist and faculty member at the Warren Alpert Medical School of Brown University. Prior to joining Happify, he served as Director of Adult Behavioral Sleep Medicine at Rhode Island Hospital. He completed his Ph.D. at the University of Pennsylvania and received additional postdoctoral training in cognitive neuroscience at Duke University Medical Center.

Our experts

Andrew Scheffer

photo of Andrew Scheffer

Andrew has the rare distinction of being both a former monk and a Wharton MBA. He's logged 10,000+ hours in mindfulness training over 25 years, including 8 years in monasteries around the world. He also spent 15 years in private banking and wealth management at firms like Morgan Stanley and UBS. With this background, he teaches people how to apply mindfulness in the business world and in all areas of our hectic daily lives.

Stella Grizont, M.A.P.P.

photo of Stella Grizont, M.A.P.P.

Stella is the founder of WOOPAAH, a company that designs happiness and play experiences for individuals and organizations like Google and Columbia University to increase their well‑being, creativity, and productivity. Stella is one of the first 200 people in the world to receive a Master in Applied Positive Psychology from the University of Pennsylvania. Her work has been featured on MSNBC, Vanity Fair, ABC7, and Entrepreneur Magazine.

Rick Hanson, Ph.D.

photo of Rick Hanson Ph.D.

The titles of Rick Hanson's books tell you why we are thrilled to work with him: Hardwiring Happiness, Buddha's Brain, and Mother Nurture. He’s a neuropsychologist, Senior Fellow at the Greater Good Science Center at UC Berkeley, and publishes a newsletter, "Just One Thing", that has over 100,000 subscribers.

Michelle Gielan, M.A.P.P.

photo of Michelle Gielan, M.A.P.P.

Michelle is the bestselling author of Broadcasting Happiness and the founder of the Institute for Applied Positive Research. She is an Executive Producer of “The Happiness Advantage” Special on PBS, and her research and advice have received attention from The New York Times, Washington Post, Forbes, CNN, FOX, and Harvard Business Review. She holds a Master of Applied Positive Psychology from the University of Pennsylvania.

John Zelenski, Ph.D.

photo of John Zelenski Ph.D.

Dr. Zelenski is an Associate Professor of Psychology and directs the Carleton University Happiness Laboratory. He studies individual differences in happiness and how these unfold as momentary thoughts, feelings, and behaviors. Most of this work has focused on the trait of introversion-extraversion or how people connect with nature. He has taught university courses on personality and positive psychology to rave reviews at Carleton, Washington University, and around the world (literally) with Semester at Sea.

Elizabeth Dunn, Ph.D.

photo of Elizabeth Dunn Ph.D.

An associate professor of psychology at the University of British and co-author of Happy Money. Dr. Dunn has examined the role of adversity in creating the ability to savor, and the impact of helping others on our well-being. At age 26 she was featured as one of the "rising stars" across all academia by the Chronicle of Higher Education.

Christiane Wolf, M.D., Ph.D.

photo of Christiane Wolf, M.D., Ph.D.

Christiane is a physician turned mindfulness and compassion teacher and teacher trainer. She teaches Mindfulness-Based Stress Reduction (MBSR) and Mindful Self-Compassion and is also a Buddhist teacher in the Insight (Vipassana) meditation tradition. She teaches classes, workshops and retreats in the US and in Europe in both English and German. She is the co-author of the book, A Clinician’s Guide To Teaching Mindfulness.

Alexis Conason, Psy.D.

photo of Alexis Conason, Psy.D.

Dr. Conason is a clinical psychologist, researcher, speaker, and founder of The Anti-Diet Plan, a mindfulness-based program designed to help people get off the dieting-overeating rollercoaster and develop a more peaceful relationship with food. She is in private practice in New York City, where she specializes in the treatment of overeating disorders, body image dissatisfaction, and psychological issues related to weight loss surgery. Dr. Conason is also a Research Associate at Mount Sinai St. Luke’s Hospital.

Jane Hamilton, R.N., M.S.N.

photo of Jane Hamilton, R.N., M.S.N.

A nurse for 40 years and family caregiver for 20, Jane is the founder of Partners on the Path, LLC, which provides caregiver support programs to businesses and non-profits, health-care, and faith-based organizations. Jane is the author The Caregiver’s Guide to Self-Care, and her consultation and educational programs focus on helping caregivers manage stress, build resilience, and practice healthy self-care.

Our experts

Rosemary Sword

photo of Rosemary Sword

Rosemary is co-developer of Time Perspective Therapy, a therapy specifically designed for post-traumatic stress. She is co-author of related books such as The Time Cure, Time Perspective Theory, and Living and Loving Better. Sword and her collaborator, Philip Zimbardo, write a popular column for Psychology Today and Psychology in Practice. She is also a private practice time perspective therapist.

John Coffey, Ph.D., M.S.W.

photo of John Coffey, Ph.D., M.S.W.

John is a Visiting Assistant Professor at Sewanee: The University of the South. He is the second person to earn a PhD in Positive Developmental Psychology from Claremont Graduate University and serves as a life coach for parents and their children. His research focuses on understanding and promoting well‑being from childhood and adolescence into adulthood by merging theories from developmental and positive psychology.

Amy Blankson

photo of Amy Blankson

Amy is the author of The Future of Happiness and a co-founder the Digital Wellness Collective, a global group of educators, mental health practitioners, and champions of tech for good working to enhance human relationships through the intentional use and development of technology. She is a member of the UN Global Happiness Council, serves as a fellow of the World Innovation Organization, and has received a Point of Light from two U.S. presidents.

Kristen Race, Ph.D.

photo of Kristen Race Ph.D.

Dr. Race is the author of Mindful Parenting and founder of Mindful Life™, a program designed to improve brain function and brain development in adults and children. She has been featured in outlets including the New York Times, NPR, The Washington Post, TODAY, and CNN. Dr. Race is a TEDx and keynote speaker and has trained over 10,000 leaders in her methods worldwide. She received her Ph.D. in Child, Family and School Psychology from the University of Denver.

Tara DeWitt, Ph.D.

photo of Tara DeWitt, Ph.D.

Dr. DeWitt is a clinical psychologist in New York City who specializes in working with the LGBTQ community and with couples. She served as an editor on the groundbreaking book, Trans Bodies, Trans Selves: A Resource for the Transgender Community and as the LGBTQ coordinator for a major healthcare institution. She received her Ph.D. from the Ferkauf Graduate School of Psychology and is committed to providing and promoting affirmative treatment for the LGBTQ community.

Homaira Kabir, M.A.P.P.

photo of Homaira Kabir, M.A.P.P.

Homaira is a positive psychology coach, a cognitive behavioral therapist and a researcher on women’s self-worth who has over 10 years of experience coaching and training women in leadership and well-being. With a Master’s degree in positive psychology and coaching psychology, and as a MentorCoach certified coach, Homaira takes a unique approach to women’s leadership that blends science and spirit and forms the basis for self-transformation.

Cara Bradley

photo of Cara Bradley

Cara Bradley is a leading authority of body-mind training having led thousands through her signature strategies to live in flow. Cara is the author of On The Verge: Wake Up, Show Up, and Shine, and the founder of the Verge Body-Mind Center in Philadelphia. She works with CEOs and Fortune 500 companies such as Coca-Cola, Wells Fargo, Spectrum, and Goldman Sachs, as well as collegiate sports teams.

Paul Osincup

photo of Paul Osincup

Paul is an international speaker and humor strategist, with a mission of global workplace happiness. He is also the President of the Association for Applied and Therapeutic Humor, an international organization dedicated to the study and application of humor to enhance health and human performance. Paul's keynotes and workshops equip people with strategies for using humor and positive communication skills to create more connected, fun, and productive places to work.

Janice Marturano

photo of Janice Marturano

Janice is the Founder and Executive Director of the Institute for Mindful Leadership, a non-profit organization dedicated to training and supporting leaders in the exploration of mindfulness and its impact on the cultivation of leadership excellence. As a certified teacher of mindfulness and an experienced former senior officer of a Fortune 200 company, she has brought the intensive training of mindful leadership to all forms of organizations—corporate, non-profit, academic, government and military.

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I’ve spent a good portion of my life serving individuals with chronic illness and witnessing them thrive in the face of adversity. My chronic illness track pulls from everything I’ve learned from patients, military service, leaders in medicine and positive psychology, and my personal journey. Chronic illness does not define you— live your best life in spite of it.
The Happify sleep track is a focused, short-term program that makes state-of-the-art science on better sleep easily accessible. The recommendations should be helpful for people across the spectrum of sleep problems, from those who only experience mild impairment in attention or mood to those with quite significant sleep problems who might otherwise require more intense medical intervention.
Through my Happify tracks, I aim to help employees learn the critical inner skills they need to flourish no matter what (or who) the challenge may be.
Since findings from Positive Psychology have revealed that all success in life is preceded by emotional flourishing, I wanted to create tracks that together did two things that have been found to contribute to a meaningful, fulfilling life: setting and pursuing goals from an evidence-based perspective, and cultivating the character strengths that contribute to becoming authentically gritty.
I am sure that anyone coping with PTSD will now have a much more robust hope of being able to enjoy everyday life more fully after completing our Happify track.
Happify crafted my meditation track on the site with a rare combination of depth and a wonderful instinct for creativity, communication skill, and fun. All too often meditation offerings are authentic but ponderous, or inventive but shallow. I felt that happify got it just right, in a very unusual way, so that participants find the program both comprehensive and accessible.
In my work coaching and teaching the skills of resilience, optimism, and positive psychology, I've been continually impressed by the inherent strength of the human spirit. With Happify I've been able to share many of the science-backed skills I've seen people use to grow through adversity and create lives rich in connection and purpose.