Biological Age vs Chronological Age: The Hidden Fertility Factor No One Is Talking About

We’ve been told for decades that fertility is all about age — but what if that’s only part of the story?

In this deeply insightful and science-backed conversation, we uncover why biological age — not chronological age — may be the most important factor influencing fertility, egg quality, embryo development, and pregnancy outcomes.

In this amazing episode, I am joined by Dr Katherine Zagone!

Dr. Katherine Zagone, ND, Chief Medical Officer and co-founder of Clockwize, has been supporting women and couples easily conceive their healthiest babies for almost a decade. Afterhaving her own successrewinding her biological clock, she is now on a mission to support women everywhere in having healthy babies on their timeline. She's excited to bring effective science, a warm heart, and an industry-changing approach to the world through Clockwize, Inc.

Biological age reflects the health of your cells, your DNA, and your epigenetic expression. And unlike your birthdate, biological age can be measured — and even reversed.

In this episode, we explore groundbreaking research and real clinical experience showing that:

1. Women who improve their cellular health can improve fertility outcomes
2. Younger women with advanced biological age may struggle more than older women with healthier cells
3. Epigenetics, methylation, toxins, stress, and trauma directly influence reproductive health
4. Fertility is an early indicator of overall health and longevity

You’ll hear how biological age testing works (using blood-based epigenetic markers), what methylation really means for fertility, and why conditions like MTHFR mutations, inflammation, mold exposure, and chronic stress can quietly accelerate the biological clock.

🌱 The FAST Framework for Rewinding Biological Age

This episode breaks down a holistic approach to fertility optimization, including:

1. Food: nutrient-dense, anti-inflammatory, low-toxin nutrition
2. Fasting: strategic timing to support cellular repair (when appropriate)
3. Fitness: finding the sweet spot between movement and recovery
4. Associated conditions: blood sugar issues, hormone imbalances, genetic pathways
5. Sleep: circadian rhythm regulation and hormonal repair
6. Stress & Mind-Body Work: meditation, breathwork, nervous system regulation
7. Supplementation: personalized support for methylation and cellular health
8. Toxins & Trauma: reducing chemical exposure and healing stored stress

One of the most powerful takeaways?

👉 The mind-body connection may be the single most important fertility intervention.

Our thoughts, beliefs, and internal stress responses directly affect our cells. When the body feels safe, it can shift into rest, repair, and reproduction.

This conversation also looks toward the future of fertility...