We’re starting off 2025 with a bang, looking at how to become unkillable according to human performance scientist Dr. Andy Galpin. Is it possible for a person to become virtually invincible? And how does that translate to the way we think and react to high-stress situations? David sits down with Andy to find out exactly that on this first episode of The Dr. & The Nurse for 2025.

David starts out his discussion with Andy by breaking down exactly what it looks like to become unkillable: the physiological aspects, the physical training, and the psychological expertise. The two then do a deep dive into why resilience is so important to this idea of being unkillable, and how to build resilience into your everyday practices. Finally, Andy hits on the importance of sleep and why this simple tool is so essential on the path towards becoming unkillable.

Dr. Daniel Amen joins David for the second part of this conversation, looking at how to build a bulletproof, unkillable brain. Dr. Amen takes a look at the practices of high-performance athletes and the ways they manage their minds to point out some of the commonalities of individuals with this unkillable mindset. The episode wraps up with Dr. Amen—like Andy—emphasizing the absolute importance of sleep as a key factor to becoming unkillable.

Learn more about Dr. Andy Galpin on his website: https://www.andygalpin.com/.

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CHAPTERS

00:00 Becoming Unkillable: The Concept Defined

07:45 Physical Resilience and Adaptation

12:06 Limits of Human Adaptation

21:46 The Importance of Sleep and Recovery

30:16 Precision in Health Optimization

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S3 Ep84: OOPS NO POD, POD! Also, Kick-Starting Progress, Belief & Brain Science, and Me Being Unprepared