The Science of Stress, Safety, & Nervous System Regulation | Dr. David Rabin

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What if the key to better sleep, recovery, focus, and lasting behavior change isn't another productivity hack – but feeling safe in your own body?

In this episode, Kelly and Juliet Starrett sit down with psychiatrist, neuroscientist, and Apollo Neuroscience co-founder Dr. David Rabin to explore the hidden role the nervous system plays in stress, learning, trauma, performance, and recovery.

Drawing on more than two decades of research, Dr. Rabin explains why modern life keeps us trapped in a state of chronic overstimulation – and how that affects sleep, resilience, chronic pain, emotional health, and our ability to learn. They also dive into the science of the vagus nerve, heart rate variability, fear extinction, human connection, and simple tools that help us feel safer, calmer, and more adaptable.

What You'll Learn in This Episode

• Why feeling physiologically safe is the foundation for learning, healing, and peak performance
• How chronic stress affects sleep, recovery, immunity, and the body's ability to function
• The difference between top-down thinking and bottom-up nervous system regulation
• Why touch, movement, music, breathwork, and human connection are powerful tools for reducing stress
• How modern technology and constant stimulation may be making us less resilient, less focused, and less connected

Key Highlights:

(0:00) Intro: Gen Z Cognitive Regression & Technology Warning

(0:37) Meet Dr. David Rabin: Psychiatrist & Apollo Neuroscience Co-Founder

(2:20) Bottom-Up vs. Top-Down Learning

(4:41) The Neuroscience of Learning and Safety

(7:06) Maslow's Hierarchy and Physiological Safety

(12:27) The Role of Touch as Our First Language

(18:47) The Vagus Nerve: Governor of Rest and Recovery

(27:32) Apollo Wearable: Activating Safety in Seconds

(29:07) Kelly's Sleep-Anywhere Superpower & Sleep Science

(33:08) Belief, Biology, and the Dream Catcher Story

(41:06) The Amygdala as a Contrast Detection Center

(47:35) PTSD as a Learned Fear Disorder

(56:14) What Apollo Actually Does and How It Works

(1:04:26) Apollo + Oura Ring Sleep Study – 1,000+ People, 3 Years

(1:12:49) Managing Overstimulation in a Tech-Driven World

(1:14:53) Smartphone Addiction and Misdiagnosis of ADHD

(1:16:12) Book Highlights and Education System 50 Years Outdated

(1:18:19) AI Should Not Replace Human Teaching and Healing

(1:20:28) Infinite Shelf: The Four Agreements by Don Miguel Ruiz

(1:23:13) Closing Thoughts

Huge thanks to our sponsors, LMNT and Momentous.