In this inspiring episode of the Root Cause Medicine Podcast, Dr. Kate Kresge welcomes Dr. Cynthia Libert, a board-certified family physician, functional medicine expert, and creator of The Joy Prescription. Together they explore the biochemistry of joy, how gratitude reshapes brain connectivity, and how positive emotion can help to modulate inflammation, support neuroplasticity, and protect cognitive health. Clinicians will learn practical ways to integrate “joy prescriptions” into patient care, using evidence-informed tools to foster resilience and prevent burnout.
This conversation reframes joy as a physiological state with measurable clinical impact, not just an emotion. Dr. Libert blends neuroscience, functional medicine, and spiritual reflection to show how cultivating joy and gratitude can help to restore parasympathetic balance, support healthy immune function, and enhance cognitive flexibility. The episode offers an accessible, hopeful model for physicians—one that unites emotional health, brain resilience, and integrative lifestyle care.
Clinical Takeaways from This Episode
Joy as a Measurable Biological State: Joy, positive affect and gratitude practices appear to increase activity in the ventral striatum and prefrontal cortex (Rueschkamp, 2019), and have some evidence for improving neuroplasticity, vagal tone, and immune resilience while reducing inflammatory cytokines like IL-6 (Dutcher, 2021).
- Gratitude Practices and Neurochemistry: Regular gratitude journaling boosts dopamine and serotonin, rewiring the reward pathways that reinforce positive affect and motivation. It may even help people to exercise more often over time (Emmons, 2003).
- Positive Affect and Cognitive Performance: Studies show that positive affect can enhance cognitive flexibility and attention-switching—even brief exposure to positive emotion improves executive function (Wang, 2017).
- Micro “Joy Prescriptions” for Busy Clinicians: Dr. Libert recommends short “Vitamin G” (gratitude) walks, deep-breathing practices, or quick notes of appreciation to activate joy and resilience in under 10 minutes per day.
- Integrative Cognitive Health Framework: Joy supports foundational systems—sleep, movement, nutrition, and connection—that underlie cognitive longevity, aligning with the Bredesen Protocol and functional medicine principles.
Guest Introduction
Cynthia Libert, M.D. is a board-certified family physician, educator, and founder of the
Caring for the Body Functional Medicine Center in Asheville, NC. With over 20 years of experience, she specializes in
cognitive health, longevity, and burnout prevention. She is the creator of
ReThink Aging and
The Joy Prescription, a podcast and clinical framework helping patients and practitioners reconnect with purpose and vitality.
caringforthebody.org |
thejoyprescription.com
Labs, Nutrition, and Lifestyle Support
Functional Labs for Brain and Mood Health
- High-sensitivity CRP, IL-6, and HbA1c for inflammatory and metabolic insight
- B12, vitamin D, magnesium, and thyroid panels for cognitive optimization
- Sex hormones, insulin resistance, and micronutrient status for personalized longevity mapping
Nutrition and Supplement Considerations
- Anti-inflammatory protocols rich in omega-3s, polyphenols, and curcumin
- Supportive nutrients for neurotransmitter balance: B-complex, magnesium glycinate, phosphatidylcholine
- Gut–brain support through probiotics, fiber diversity, and fermented foods
Lifestyle and Behavioral Strategies
- Daily gratitude or journaling rituals shown to reduce anxiety and depression by ~7 % (Diniz, 2023)
- Movement and strength training for muscle preservation and insulin sensitivity
- Structured rest—weekly breaks, retreats, or community connection for burnout prevention
- Group programs like Dr. Libert’s SoulCare circles to rebuild belonging and resilience
Timestamps
00:00 - Introduction and episode overview
02:50 - Why joy is crucial in clinical care & science behind it
05:28 - Dr. Libert’s personal story with burnout and rediscovery of joy
07:29 - Practical ways to prevent burnout and cultivate joy
11:33 - The science of joy, neuroplasticity, and brain connectivity
12:35 - Joy’s effects on the stress response and inflammation
18:37 - Observed patient changes with joy and lifestyle interventions
24:41 - Neuroanatomy: prefrontal cortex & limbic system role in emotional regulation
26:12 - Impact of brain connectivity in ADHD & emotional control
31:38 - Practical strategies for reconnecting patients with joy and purpose
36:20 - Research on gratitude and mental health improvements
38:24 - Dr. Libert’s movement and exercise routine
41:10 - Adjusting fitness goals according to life seasons
46:05 - Final thoughts on addressing neurodegeneration and root causes
48:00 - Closing remarks
Citations
- Emmons RA, Sefick, WJ, Froh, JJ. Counting blessings versus burdens: An experimental investigation of gratitude and subjective well-being. J Pers Soc Psychol. 2003.
- Van der Stigchel S et al. Positive emotion and cognitive flexibility. Front Psychol. 2017.
- Ochsner KN et al. Cognitive regulation of emotion: functional networks and mechanisms. Soc Cogn Affect Neurosci. 2012.
- Cole SW et al. Eudaimonic well-being and gene expression: CTRA down-regulation. Proc Natl Acad Sci USA. 2013.
- UC Braid Clinical Trials Registry: Ventral striatum activity correlated with decreases in IL-6 and CRP.
- The effects of gratitude interventions: a systematic review and meta-analysis. PMC 2021.
- Rueschkamp, Johanna M Grosse. “Neural Correlates of Up-Regulating Positive Emotions in FMRI and Their Link to Affect in Daily Life.” Social Cognitive and Affective Neuroscience, vol. 14, 2019
