What if your metabolism isn’t slowing down, but your strategy just stopped working with your biology? In this episode of the CODE Health Podcast, Zane Griggs shares why fitness after 40 requires a smarter, more adaptive approach, one that honors your hormones, nervous system, and inner resilience.
We explore why intermittent fasting, low-carb diets, and fasted workouts can backfire when overused, how cortisol and thyroid imbalances silently stall progress, and why women are especially sensitive to stress-driven plateaus. You’ll learn how to build muscle that protects your brain, bones, and independence, and what it really means to shift from hustle to harmony.
We also unpack why your emotional and energetic state is just as critical as your training plan.
Zane Griggs is a health and fitness expert with over 20 years of experience helping people stay lean, strong, and metabolically fit after 40. He’s the author of Low Carb Lifestyle & Rewind Your Body Clock and host of the documentary Animal.
We Also Discuss:
(00:01) Why Aging Doesn’t Mean Decline
(02:35) What Zane Learned the Hard Way
(06:36) When “Healthy” Becomes Harmful
(08:40) What Really Changes After 40, and Why It’s Not Just Your Metabolism
(11:28) The Key to Brain, Bone, and Blood Sugar Health
(16:51) Strength Training for Longevity, Stability, and Independence
(23:37) The Emotional Evolution of Midlife Health
(27:32) How Personalized Metrics Reveal the Truth
(35:25) Why You’re Not Stuck With Your DNA
(39:25) Your Body is Listening: Holistic Healing Starts With Awareness
Learn More About CODE Health
Instagram: @codehealthshop
Website: https://codehealthshop.com/
Learn More About Zane Griggs:
Website: https://zanegriggs.com
Instagram: @zanegriggsfitness