152: Army Colonel Explains What Most Adults Can No Longer Do | Dr. Rob Carter

In this episode of the Primal Shift podcast, I sit down with Dr. Rob Carter, an integrative physiologist who has spent 25 years studying what happens to human beings under pressure. His new book, The Convenience Trap, makes the case that modern life has quietly outsourced our navigation, memory, attention, and physical competence — leaving most adults measurably less capable than they were built to be. I like that argument, which is exactly why I pushed on it. "Modern life is making us weak" feels so obviously true that almost nobody checks whether the science holds up. We talk about the heat shock proteins behind sauna and heat adaptation, why hormetic stress builds resilience, and where the dose-response curve turns against you. Rob explains what the GPS research actually shows versus what gets blamed on it, why the average person can now recall fewer than four phone numbers, and how hydration advice went wrong in both directions — including the risk of hyponatremia. He also walks through the ALIVE framework from the book and makes the case that capability loss in adults is reversible. I share why I stopped using GPS and what came back when I did. About Dr. Rob Carter:  Dr. Rob Carter is an integrative physiologist and four-time Taekwondo World Champion who has spent 25 years studying what happens to human beings under pressure, with a PhD in medical physiology, postdoctoral training at Harvard School of Public Health, and over 100 peer-reviewed papers on human performance and stress. His new book The Convenience Trap, co-written with his wife Dr. Kirti Salwe Carter, argues that modern life has outsourced our navigation, memory, attention, and physical competence — leaving many adults measurably less capable than they were built to be.  Website: https://theconveniencetrap.com Thank you to this episode's sponsor, Peluva! Peluva makes minimalist shoes to support optimal foot, back and joint health. I started wearing Peluvas several months ago, and I haven't worn regular shoes since. I encourage you to consider trading your sneakers or training shoes for a pair of Peluvas, and then watch the health of your feet and lower back improve while reducing your risk of injury.  To learn more about why I love Peluva barefoot shoes, check out my in-depth review: https://michaelkummer.com/health/peluva-review/  And use code MICHAEL to get 10% off your first pair: https://michaelkummer.com/go/peluva  In this episode: 00:00 Intro: Convenience makes us weak 00:35 Meet Dr Rob Carter 03:13 Why stress builds resilience 05:13 Heat adaptation and sauna 16:01 Strategic inconvenience basics 23:00 Finding the right dose 29:32 ALIVE framework explained 46:26 GPS and brain autopilot 55:08 Can the brain rebuild 01:13:52 Final thoughts Find me on social media for more health and wellness content: Website: https://michaelkummer.com/ YouTube: https://www.youtube.com/@MichaelKummer Instagram: https://www.instagram.com/primalshiftpodcast/ Pinterest: https://www.pinterest.com/michaelkummer/ Twitter/X: https://twitter.com/mkummer82 Facebook: https://www.facebook.com/realmichaelkummer/ [Medical Disclaimer] The information shared on this video is for educational purposes only, is not a substitute for the advice of medical doctors or registered dietitians (which I am not) and should not be used to prevent, diagnose, or treat any condition. Consult with a physician before starting a fitness regimen, adding supplements to your diet, or making other changes that may affect your medications, treatment plan, or overall health. [Affiliate Disclaimer] I earn affiliate commissions from some of the brands and products I review on this channel. While that doesn't change my editorial integrity, it helps make this channel happen. If you'd like to support me, please use my affiliate links or discount code.