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After four kids in six years and a stall-out on the scale, Shannon swapped punishment-style workouts for CardioCoach-guided heart-rate training. The result? Fewer injuries, steady weight loss, and marathon negative splits—plus the confidence to pace race day by physiology, not pace charts. Dr. Marc and Dr. Cameron break down her test data (why living in the 130s mattered), the 70/30 approach, and how "show up easy" beats "go hard or quit" for long-term wins.

What You'll Learn (this episode):

• How to translate a metabolic test into actionable HR zones (including fat-max)

• A step-by-step marathon HR strategy (130s → mid-140s/150s → 160s+ for the close)

• Why easy days curb hunger, improve recovery, and make intensity days work

• How to use HR drift to detect fatigue, illness, or under-recovery—before it derails you

• Turning "scale only" progress into performance metrics you can control and enjoy

• The consistency playbook: daily "show up" rules, flexibility, and avoiding injury layoffs

• How zones "expand" over time—running faster at the same heart rate without feeling harder

• Why you should "get tested now" (not later) to break the plateau loop and build momentum

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Listen to the Metabolic Mastery Podcast:

Apple Podcast: https://podcasts.apple.com/us/podcast/metabolic-mastery/id1812972674

Spotify: https://open.spotify.com/show/2sgLMFv1Z8DwEz87yUpapI?si=29a177a6c6ca4ed4

YouTube: https://www.youtube.com/@korrmed/podcasts

YouTube Music: https://music.youtube.com/playlist?list=PLVCRWXBDdFo_S0OeaAsPv8xTnfajTLc75&si=d4wVUA0jqajkbukB

Amazon: https://music.amazon.com/podcasts/d76834b7-c11a-485f-8010-32b490d49e57/metabolic-mastery