Feb 21 2025 64 mins 8
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Are your long runs and cardio sessions actually making fat loss harder? Could walking be more effective for your physique and longevity?
I bring on former pro triathlete and Olympic coach Brad Kearns to challenge the conventional wisdom around running and fat loss. Brad explains why chronic cardio may sabotage your metabolism, increase your appetite, and even make you lazier.
Brad Kearns is a two-time US national champion and a former #3 world-ranked professional triathlete. He is the co-author of Born to Walk with Mark Sisson. Brad is a coach, researcher, and speaker focused on longevity, fat loss, and performance.
Today, you’ll learn all about:
02:12 – Why running is the second most dangerous sport after football
06:19 – The genetic flaw in the argument that humans are "Born to Run"
09:34 – How chronic cardio affects metabolism and fat loss
14:27 – Why most calorie burn calculations are totally inaccurate
20:56 – Walking is anabolic, running is catabolic—here’s why
30:02 – The best way to sprint for fat loss (without burnout)
39:09 – Why endurance runners tend to be lazier throughout the day
45:46 – The fat max heart rate and why most people run too fast
55:36 – How to run without destroying your metabolism or joints
1:04:13 – Outro
Episode resources:
- Free bonuses when you buy the book: borntowalkbook.com
- The B.rad Podcast
- Website: bradkearns.com
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