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May 26th, 2026

Ancient Wisdom, Modern Science: Ayurveda, Digestion, and the Foundations of Longevity | Dr. John Douillard | Ep. 403

  1. Ancient Wisdom, Modern Science: Ayurveda, Digestion, and the Foundations of Longevity | Dr. John Douillard | Ep. 403 Jeff Armstrong 1:08:00

What if the key to longevity isn’t found in the latest Health trend—but in principles that have been practiced for thousands of years?

In this episode of The Aging Well Podcast, Dr. Jeff Armstrong sits down with Dr. John Douillard, founder of LifeSpa and a leader in integrating Ayurvedic wisdom with modern science. With over four decades of clinical experience, Dr. Douillard shares a practical, evidence-informed approach to building sustainable health from the inside out.

We explore how digestion—not just Diet—sits at the center of health, why circadian rhythms may be one of the most overlooked drivers of longevity, and how seasonal living can reset the microbiome and improve resilience. Dr. Douillard also breaks down the surprising role of the lymphatic system in detoxification and aging, along with the performance and health implications of something as simple as nose breathing.

This conversation cuts through the noise of modern wellness culture and offers a grounded, actionable framework for improving energy, digestion, and long-term vitality—without overcomplicating the process.

Learn more at https://lifespa.com/

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Jeff Armstrong W. Jeffrey Armstrong, Ph.D.

Jeff Armstrong is a professor of Exercise Science (Ph.D., Exercise Physiology) at Western Oregon University and host of the Aging Well Podcast. He authored the textbook, 'Pathophysiology & Exercise' (Kendall-Hunt) and teaches a breath of courses from this to Advanced Programming for Sport & Fitness. He is passionate about longevity, health, improving/maintaining performance (Spiritually, Physically, Intellectually, Emotionally, and Socially--what he refers to as "well-centered fitness") across the lifespan, and aging well.