Uploaded July 2026 | Updated September 2026, 2 weeks ago
What happens to the brain, heart, and sense of self during meditation?
Neuroscientist Idil Sezer joins the FitMind Podcast to discuss the emerging science of meditation, from changes in attention and emotional regulation to brain–heart communication, bodily awareness, and advanced meditative states.
In this conversation, Idil explains:
• How meditation affects attention, emotion, pain, and self-awareness
• The difference between long-term and advanced meditators
• What heart-rate patterns may reveal about deep meditation
• How the brain and heart communicate during relaxation
• Why meditation may affect multiple systems throughout the body
• How virtual reality can alter body ownership and self-location
• Whether VR could help people experience nondual awareness
• Why different meditation practices work for different people
Idil also shares her current research using virtual reality, EEG, brain–heart measurements, and meditation to investigate the bodily foundations of consciousness and the self.
Subscribe to the FitMind Podcast for more conversations exploring meditation, neuroscience, consciousness, and mental fitness.
____________________________________________________________
FitMind is a mental fitness nonprofit that aims to make science-based meditation accessible to all.
🌐 Explore FitMind: fitmind.org
📱 Train Your Mind: bit.ly/fitmindtraining
🎧 Listen to the Podcast: fitmind.org/podcast
📘 Read Fit Mind Book: fitmind.org/book
____________________________________________________________
Show Notes
0:00 | Introducing Idil Sezer, PhD
2:11 | From Clinical Neuroscience to Meditation Research
3:58 | Why Meditation Is a Unique Tool for Training the Mind
5:21 | Meditation Beyond Relaxation and Performance
7:27 | What Different Meditation Traditions Change in the Brain
10:03 | The Nervous System and Meditation’s Effects on the Heart
11:01 | Cardiac Spectral Peaks in Advanced Meditators
16:54 | Brain–Heart Communication and Holistic Neuroscience
18:13 | Long-Term vs. Advanced Meditators
20:25 | Mental Health, Pain Relief, and Neuroprotection
22:09 | Meditation, Gut Health, Epigenetics, and Cellular Memory
28:23 | Predicting Who Responds to VR Anxiety Interventions
38:17 | Using Virtual Reality to Investigate the Sense of Self
44:21 | Nondual Awareness and the Future of Meditation Research
49:22 | Finding the Meditation Practice That Works for You
What happens to the brain, heart, and sense of self during meditation?
Neuroscientist Idil Sezer joins the FitMind Podcast to discuss the emerging science of meditation, from changes in attention and emotional regulation to brain–heart communication, bodily awareness, and advanced meditative states.
In this conversation, Idil explains:
• How meditation affects attention, emotion, pain, and self-awareness
• The difference between long-term and advanced meditators
• What heart-rate patterns may reveal about deep meditation
• How the brain and heart communicate during relaxation
• Why meditation may affect multiple systems throughout the body
• How virtual reality can alter body ownership and self-location
• Whether VR could help people experience nondual awareness
• Why different meditation practices work for different people
Idil also shares her current research using virtual reality, EEG, brain–heart measurements, and meditation to investigate the bodily foundations of consciousness and the self.
Subscribe to the FitMind Podcast for more conversations exploring meditation, neuroscience, consciousness, and mental fitness.
____________________________________________________________
FitMind is a mental fitness nonprofit that aims to make science-based meditation accessible to all.
🌐 Explore FitMind: fitmind.org
📱 Train Your Mind: bit.ly/fitmindtraining
🎧 Listen to the Podcast: fitmind.org/podcast
📘 Read Fit Mind Book: fitmind.org/book
____________________________________________________________
Show Notes
0:00 | Introducing Idil Sezer, PhD
2:11 | From Clinical Neuroscience to Meditation Research
3:58 | Why Meditation Is a Unique Tool for Training the Mind
5:21 | Meditation Beyond Relaxation and Performance
7:27 | What Different Meditation Traditions Change in the Brain
10:03 | The Nervous System and Meditation’s Effects on the Heart
11:01 | Cardiac Spectral Peaks in Advanced Meditators
16:54 | Brain–Heart Communication and Holistic Neuroscience
18:13 | Long-Term vs. Advanced Meditators
20:25 | Mental Health, Pain Relief, and Neuroprotection
22:09 | Meditation, Gut Health, Epigenetics, and Cellular Memory
28:23 | Predicting Who Responds to VR Anxiety Interventions
38:17 | Using Virtual Reality to Investigate the Sense of Self
44:21 | Nondual Awareness and the Future of Meditation Research
49:22 | Finding the Meditation Practice That Works for You


![Day 1: How to Rewire Your Brain - Neuroplasticity Exercises | 30 Days of Meditation, Science & Bliss
Welcome to the Day 1 lesson of the 30 Days of Meditation, Science & Bliss course!
Through neuroplasticity exercises, you will learn how to rewire your brain and integrate mindfulness and mental fitness practices into daily life.
What You Will Learn:
- The meditation technique that produces the fastest changes in the brain
- How both the mind and brain work
- Profound yet accessible altered states of consciousness
- How to increase your mental energy, serotonin, and overall mental fitness
- Many other topics
Course Details:
- Offered at no cost on YouTube and in the FitMind app
- Time commitment: 10-30 minutes per day (you choose)
Share the course with your friends! Heres a link to the complete 30 Days of Meditation, Science & Bliss course: https://bit.ly/30-day-course
FitMind is a mental fitness nonprofit that aims to make science-based meditation accessible to all. With your support, we can spread wellbeing and mental health. Even the smallest contribution makes a significant impact: https://fitmind.org/donate.
Website: https://www.fitmind.org
App: https://bit.ly/fitmindtraining
Podcast: https://www.fitmind.org/podcast
Liam is a forest monk who has taught meditation internationally. He advises on advanced meditation research for Harvard Medical School & Mass General Hospital. Liam holds a BA from Yale and an MSc in applied neuroscience from KCL.
Resources & Science
Paper 1: https://academic.oup.com/brain/article/134/6/1591/369496
Paper 2: https://direct.mit.edu/neco/article-abstract/29/10/2633/8300/Active-Inference-Curiosity-and-Insight
Paper 3: https://www.sciencedirect.com/science/article/pii/S014976342100261X
Paper 4: https://www.mdpi.com/2076-3425/11/8/1086
Paper 5: https://www.nature.com/articles/s41386-022-01389-z
Paper 6: https://www.sciencedirect.com/science/article/abs/pii/S1571064519300909
Paper 7: https://www.nature.com/articles/s42003-021-02994-2
[Disclaimer: Advice on the FitMind channel is for educational purposes only. Please consult a medical professional before engaging in new health-related activities or for guidance regarding mental conditions.] Day 1: How to Rewire Your Brain - Neuroplasticity Exercises | 30 Days of Meditation, Science & Bliss](https://i.ytimg.com/vi/rS8TLLpeHeU/mqdefault.jpg)





![Day 30: Guided Flow State Meditation - 10 Minutes | 30 Days of Meditation, Science & Bliss
Congratulations on making it to day 30 of the course! Today’s training is a guided flow state meditation, drawing inspiration from advanced practitioners like Dipa Ma to illustrate the potential of a trained mind.
The meditation technique incorporates the 4Rs framework (Relax, Release, Relish, Remain) to cultivate wholesome mental states and deepen awareness.
By balancing tranquility and energy, participants are guided to observe their minds unfolding naturally, potentially accessing more profound levels of bliss.
The session concludes with recommendations for extended practice and integration of these techniques into daily life, emphasizing the importance of consistency in developing mental fitness.
Share the course with your friends! Heres a link to the complete 30 Days of Meditation, Science & Bliss course: https://bit.ly/30-day-course
FitMind is a mental fitness nonprofit that aims to make science-based meditation accessible to all. With your support, we can spread wellbeing and mental health. Even the smallest contribution makes a significant impact: https://fitmind.org/donate.
Website: https://www.fitmind.org
App: https://bit.ly/fitmindtraining
Podcast: https://www.fitmind.org/podcast
Resources
- Book Recommendation: Dipa Ma: The Life and Legacy of a Buddhist Master, by Amy Schmidt https://dipama.com/book/
- Book Recommendation: Meditator’s Field Guide, by Doug Kraft https://easingawake.com/?p=MeditatorsFieldGuide
Science
- Paper 1: Brown, D. P., & Engler, J. (1980). The stages of mindfulness meditation: A validation study. The Journal of Transpersonal Psychology, 12(2), 143. https://atpweb.org/jtparchive/trps-12-80-02-143.pdf
[Disclaimer: Advice on the FitMind channel is for educational purposes only. Please consult a medical professional before engaging in new health-related activities or for guidance regarding mental conditions.] Day 30: Guided Flow State Meditation - 10 Minutes | 30 Days of Meditation, Science & Bliss](https://i.ytimg.com/vi/t-uNPQlcVsg/mqdefault.jpg)
![Day 23: How to Improve Brain Function - Science & Meditation | 30 Days of Meditation, Science, Bliss
Discover how to improve brain function through the lens of science and meditation.
This video delves into the brains predictive processing framework, explaining how our minds constantly refine models of the world to keep us alive.
Learn about the balance between expectations and flexibility, and how meditation can help train our brains to accept mental fluidity.
By understanding these concepts, you can enhance your brains adaptability and reduce mental friction in an ever-changing world.
Share the course with your friends! Heres a link to the complete 30 Days of Meditation, Science & Bliss course: https://bit.ly/30-day-course
FitMind is a mental fitness nonprofit that aims to make science-based meditation accessible to all. With your support, we can spread wellbeing and mental health. Even the smallest contribution makes a significant impact: https://fitmind.org/donate.
Website: https://www.fitmind.org
App: https://bit.ly/fitmindtraining
Podcast: https://www.fitmind.org/podcast
Resources & Science
[Please note: Liam is not an expert on this topic. Please consult the literature below for a more thorough, detailed understanding of the mechanics of PP.]
- Paper 1: https://medium.com/@solopchuk/tutorial-on-active-inference-30edcf50f5dc
- Paper 2: https://www.frontiersin.org/journals/human-neuroscience/articles/10.3389/fnhum.2014.00302/full
- Paper 3: https://slatestarcodex.com/2016/09/12/its-bayes-all-the-way-up/
- Paper 4: https://journals.sagepub.com/doi/full/10.1177/17540739211063851#body-ref-fn4
- Paper 5: https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2020.00404/full
- Book Recommendation: When the Chocolate Runs Out, by Lama Yeshe https://wisdomexperience.org/product/when-chocolate-runs-out-0/
[Disclaimer: Advice on the FitMind channel is for educational purposes only. Please consult a medical professional before engaging in new health-related activities or for guidance regarding mental conditions.] Day 23: How to Improve Brain Function - Science & Meditation | 30 Days of Meditation, Science, Bliss](https://i.ytimg.com/vi/tTkjtux-x74/mqdefault.jpg)
![Day 24: How to Watch the Mind Meditation - 10 Minutes | 30 Days of Meditation, Science & Bliss
This video will explain how to watch the mind in a 10-minute guided meditation practice focused on observing mental movements clearly.
The meditation guides you through relaxation techniques, cultivating positive emotions, and using the 4Rs method (Recognize, Release, Relish, Remain) to maintain awareness and balance.
It emphasizes the importance of observing thoughts without attachment, likening the experience to watching a movie.
Share the course with your friends! Heres a link to the complete 30 Days of Meditation, Science & Bliss course: https://bit.ly/30-day-course
FitMind is a mental fitness nonprofit that aims to make science-based meditation accessible to all. With your support, we can spread wellbeing and mental health. Even the smallest contribution makes a significant impact: https://fitmind.org/donate.
Website: https://www.fitmind.org
App: https://bit.ly/fitmindtraining
Podcast: https://www.fitmind.org/podcast
[Disclaimer: Advice on the FitMind channel is for educational purposes only. Please consult a medical professional before engaging in new health-related activities or for guidance regarding mental conditions.] Day 24: How to Watch the Mind Meditation - 10 Minutes | 30 Days of Meditation, Science & Bliss](https://i.ytimg.com/vi/toO0Dh6uH8U/mqdefault.jpg)