Meet Nathan Siles
A Journey from Illness to True Health
From Crisis to Clarity: My Personal Health Journey
Nathan Siles is a biophysics and mitochondrial health expert dedicated to empowering individuals to reclaim their well-being through science-backed insights and lifestyle medicine. With a focus on the foundational role of mitochondria in health and disease, Nathan’s work reveals the surprising connections between energy production at the cellular level and chronic health issues. He passionately translates complex biophysics into practical tools, helping people restore balance, vitality, and resilience in their lives. Nathan is the founder of a vibrant health community and educational platform, where he shares valuable resources with a growing audience seeking solutions beyond conventional medicine.
My Story
I’ve faced health challenges from a young age. At just eight months old, I was diagnosed with retinoblastoma, a rare eye cancer that left me legally blind after undergoing radiotherapy. Despite this, I remained full of curiosity and resilience, thriving through childhood with a keen sense of observation and a desire to understand the world around me. But my biggest test came at 24 when cancer struck again. After surgery and chemotherapy, I began to question traditional medicine’s approach. I realised that merely treating symptoms wasn’t enough—I needed to dig deeper, understand the root causes, and find a path that would not only heal me but also prevent illness from returning.
That journey led me to mitochondrial health. I was fascinated by the potential of cellular health to transform our entire well-being. I immersed myself in research, studying under pioneers like Dr. Jack Kruse and Dr. Douglas C. Wallace, who introduced me to biophysics and circadian biology. The more I learned, the more I realised that optimising mitochondrial function was the key not just to surviving but thriving. It wasn’t just about me—I began consulting others, from chronically ill patients to elite athletes, and witnessed firsthand how addressing the body’s foundational systems could dramatically improve lives. Mitochondrial health wasn’t just a concept; it was a life-changer.
Now, my approach integrates science, biology, and nature’s rhythms. Foundational health, built on principles like circadian alignment, optimal nutrition, and understanding our environmental impacts, empowers individuals to prevent disease and take control of their health. I’ve seen it work for myself and for others, and that’s why I’m passionate about helping people on their own journey to health. My mission is to share the knowledge I’ve gained, so others can break free from the limitations of centralised medicine and embrace a life of vitality, driven by science and rooted in nature.
My Philosophy on Health
True health begins with the foundation of your biology. Healing isn’t about temporary fixes, it’s about creating an environment that allows your body to repair, regenerate, and flourish. My philosophy blends ancient wisdom with cutting-edge science to reveal the simple, yet profound principles of how we thrive. It’s about aligning your energy, biology, and connection with nature through the core principles of light, water, and mitochondria.
Featured in

Next Level Retreat – GenBiome
“The Biophysics of Nature in Practice”
In both 2022 and 2023, Nathan Siles played a pivotal role as a facilitator at GenBiome’s esteemed Next Level Retreats, held in the serene settings of Jindabyne and Crackenback in the Snowy Mountains. These immersive retreats were curated to help participants reconnect with nature and rejuvenate their health.
Nathan’s sessions delved deep into the biophysics of cold exposure, sunlight, and grounding, offering insights into how these natural elements can optimize mitochondrial function and cellular energy. His expertise empowered attendees to harness nature’s healing potential for enhanced well-being.
Learn more about the retreats here:

Podcast Interview – me&my health up
“Sunlight: Nature’s Forgotten Healer”
In a powerful conversation with Anthony Hartcher on the me&my health up podcast, Nathan shared groundbreaking insights into the health benefits of sunlight that modern medicine often overlooks.
He explained how natural light influences circadian rhythm, mood, mitochondrial health, and even gene expression. With practical tips on timing, duration, and seasonal light exposure, Nathan reframed sunlight as a daily health tool—free, accessible, and profoundly impactful.
This episode isn’t just educational—it’s empowering. It invites listeners to look up, step outside, and reconnect with the rhythms of life.

BioTra Retreat – Mind & Movement Mastery
“From Breakdown to Biophysical Breakthrough”
Nathan co-created the BioTra Method Retreat with movement specialist Nick Dawe, a cutting-edge wellness experience that bridges physical performance, nervous system regulation, and deep biophysical awareness.
Hosted by the PH Clinic, this retreat goes beyond the surface. Participants learn to tune in to their body’s movement patterns and unlock powerful shifts using light, breath, terrain, and somatic awareness. Whether you’re an athlete, a biohacker, or someone simply seeking clarity in your health journey, BioTra offers tools that leave a lasting impact.
Ready to Take the Next Step in Your Health Journey?
Whether you’re seeking to elevate your team’s productivity, empower elite athletes to reach peak performance, or transform health and wellness practices, Nathan’s science-driven approach will inspire and energize your group. Through engaging presentations and hands-on workshops, Nathan offers actionable insights into biophysics, mitochondrial health, and lifestyle medicine tailored to meet your needs.