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EP 153: The Science of Light and Other Foundational Health Principles with David Liow

Hacking Your Sleep, Your Circadian Rhythms and Health

In this interview Lisa interviews top Holistic movement and health coach David Liow of www.hm-coach.com.

Lisa and David do a deep dive into what are the circadian rhythms, why our circadian rhythms are out of whack, what blue light blocking glasses can do for your health and sleep dysfunctions. They also look into health optimisation and foundational health principles.

So what are the circadian rhythms? The circadian rhythms are the mental, behavioral and physical changes that follow a 24-hour cycle. Listen to the full episode to learn more about what are the circadian rhythms and how you can improve them for better overall health.

David Liow completed a post-graduate MPhEd (dist) at Otago University and became a Occupational Therapy lecturer in rehabilitation, anatomy, and kinesiology, then a senior lecturer in Exercise Rehabilitation and Resistance Training.

While teaching in higher education, he kept following his passion in sports training and spent a decade working with High Performance Sport New Zealand as a lead strength and conditioning coach. This gave him the opportunity to work with a wide range of world class athletes.

Some career highlights so far are:

  • Head trainer for the New Zealand Black Sox for two successful World Series campaigns
  • Head trainer and regional trainer for NZ Women's and Men's Hockey for several Commonwealth and Olympic Games.
  • Head trainer for the NZ Titleist Men and Women's Golf Academy for several Espirito Santo and Eisenhower Trophy Championship teams.
  • Trainer for numerous Commonwealth and Olympic athletes in athletics, basketball, through to swimming.
  • Regularly speaking at FitEx NZ, Filex, Asia Fitness Conference, ExPRO, Asia Edufit Summit, and other international health and fitness events.
  • Health coaching pop bands on international concert tours around the globe.
  • Co-directing Kaizen Exercise Physiologists to develop a world-class team of exercise physiologists
  • Co-founder of the Kaizen Institute of Health

David says the Holistic Movement Coach Programme is the perfect vehicle for him  to live his mission and share his life's work.   He is obsessed with finding the best ways to be healthier and move better.  To balance out his obsession(s) he is also a tai chi and chi kung practitioner and teacher, and practices the lifestyle that he teaches

Findo out more about David and his work and courses at www.hm-coach.com

To get a discount on the blue light blocking glasses mentioned in this podcast use the coupon code Lisa at checkout at  https://hm-coach.com/index.php/store/ Grab your blue blocking glasses here in our shop https://shop.lisatamati.com/collections/clothing-and-accessories/products/blue-light-blocking-glasses-v2-0-free-postage

We would like to thank our sponsors for this show:

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Lisa's third book has just been released. It's titled "Relentless - How A Mother And Daughter Defied The Odds"

Visit: https://relentlessbook.lisatamati.com/ for more Information


When extreme endurance athlete, Lisa Tamati, was confronted with the hardest challenge of her life, she fought with everything she had. Her beloved mother, Isobel, had suffered a huge aneurysm and stroke and was left with massive brain damage; she was like a baby in a woman's body. The prognosis was dire. There was very little hope that she would ever have any quality of life again. But Lisa is a fighter and stubborn.

She absolutely refused to accept the words of the medical fraternity and instead decided that she was going to get her mother back or die trying.

This book tells of the horrors, despair, hope, love, and incredible experiences and insights of that journey. It shares the difficulties of going against a medical system that has major problems and limitations. Amongst the darkest times were moments of great laughter and joy.

Relentless will not only take the reader on a journey from despair to hope and joy, but it also provides information on the treatments used, expert advice and key principles to overcoming obstacles and winning in all of life's challenges. It will inspire and guide anyone who wants to achieve their goals in life, overcome massive obstacles or limiting beliefs. It's for those who are facing terrible odds, for those who can't see light at the end of the tunnel. It's about courage, self-belief, and mental toughness. And it's also about vulnerability... it's real, raw, and genuine.

This is not just a story about the love and dedication between a mother and a daughter. It is about beating the odds, never giving up hope, doing whatever it takes, and what it means to go 'all in'. Isobel's miraculous recovery is a true tale of what can be accomplished when love is the motivating factor and when being relentless is the only option.

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What listeners are saying

My favourite running podcast by miles⭐ ⭐ ⭐ ⭐ ⭐

This is the best podcast for long runs. Lisa is just so relatable, honest, funny and inspires me to push my own limits. Awesome guests (I particularly enjoyed the podcast with Kim Morrison) and a wide variety of topics covered. Thanks for keeping me running, Lisa!
Jinni S via Apple Podcasts · Australia · 07/02/19


My favourite podcast ⭐ ⭐ ⭐ ⭐ ⭐

Helps me get through my boring desk job. Absolutely love this podcast. Great topics and advice that has helped me to better myself and my approach to running.


Two thumbs up ⭐ ⭐ ⭐ ⭐ ⭐

Always great guests, great insights and learnings that can be applied immediately for every level of experience.


Motivational and Inspirational ⭐ ⭐ ⭐ ⭐ ⭐

I am getting my mojo back with regards to my health and running after treatment for breast cancer, I connected with Lisa as I was looking for positive influences from people who are long distance runners and understand our mindset. Lisa’s podcasts have been a key factor in getting me out of a negative space where I allowed others limiting beliefs to stop me from following my heart and what I believe is right for me. After 18 months of being in cancer recovery mode I wanted to get out of the cancer mindset and back to achieving goals that had been put aside. Listening to Pushing The Limits has put me onto other great podcasts, and in the process I have learnt so much and am on a pathway to a much better place with my mindset and health. Thanks so much Lisa for doing what you do and always being you.


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