Empowering Women Through Fertility Awareness
Nourish Balance Thrive
Lisa Hendrickson-Jack, BA, FAE, is a certified Fertility Awareness Educator and Holistic Reproductive Health Practitioner who trains other practitioners to use the menstrual cycle as a vital sign in their practices. She is the founder of the ™ program and the author of three bestselling books: , the , and her most recent book (co-authored with Lily Nichols, RDN). Lisa has been teaching fertility awareness for over 20 years. She has empowered thousands of women worldwide to take control of their fifth vital sign through her podcast, books, online courses, and group...
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Entrepreneurial Insights with Jeremy Hendon
Nourish Balance Thrive
I'm thrilled to have my good friend and mentor, Jeremy Hendon, join me again on the podcast. Jeremy is an esteemed international speaker, consultant, and entrepreneur with a track record of founding, scaling, and selling multiple thriving companies. Our collaboration on the Keto Summit in 2016 was a testament to his exceptional skill in business and marketing, especially within the realm of health and wellness. Jeremy joins me today to share his transformative journey from big-law attorney to entrepreneur, highlighting pivotal decisions made along the way. He reveals his process behind...
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How to Optimise Diet and Lifestyle for Fertility
Nourish Balance Thrive
Lily Nichols is a Registered Dietitian/Nutritionist, Certified Diabetes Educator, researcher, and author dedicated to evidence-based nutrition. With a deep respect for current scientific findings and ancestral wisdom, Lily's clinical proficiency and extensive experience in prenatal nutrition have established her as a renowned consultant and speaker. Her groundbreaking work in gestational diabetes has positively impacted tens of thousands of women and has significantly shaped international nutrition policies. Today, Lily joins us to discuss her latest book, , co-authored with Lisa...
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Deborah Gordon, MD on Mold Illness, Bone Health, and Hormone Balance
Nourish Balance Thrive
Deborah Gordon, MD, is the founder and medical director of , LLC. She has a lifelong interest in health and wellness, which she has incorporated into an integrative medical practice in southern Oregon for over thirty years. She is dedicated to finding lifestyle choices that can prevent and reverse health problems, avoiding medications where possible and using them wisely where necessary. For the last decade, she has worked with a particular focus on cognitive health. On today's podcast, Deborah talks about mould/mycotoxin illness, bone health, and hormone balance. She elaborates on the...
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Free to Play - Van Life and Unschooling Our Three Kids
Nourish Balance Thrive
Today's journey takes us into unconventional living with my guest, Julie Kelly—my wife and partner in adventure. Together, we delve into our nomadic lifestyle, shared with our three vibrant children, each step an exploration outside societal norms. This conversation unfolds the layers behind our decision to steer clear of conventional schooling, whilst aiming to better support our kids’ needs. Our conversation starts with what we learned from developmental psychologist and evolutionary anthropologist Peter Gray, emphasising the pivotal role of play in a child's development and how we've...
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Beyond Survival: Fighter Jet Pilot Kegan Gill's Recovery From Ejection, TBI, and PTSD
Nourish Balance Thrive
Kegan "SMURF" Gill, a former US Navy F/A-18E pilot whose life took a dramatic turn following a near-fatal high-speed ejection at 695mph. Kegan's story is not just about survival; it's a profound narrative of overcoming life-altering injuries, battling and defeating prescription drug addiction, and enduring a gruelling two-year recovery process. His triumphant return to flying Super Hornets symbolises a victory over adversity that few can imagine, yet many can draw inspiration from. Kegan's tale, however, unfolds further as he confronts delayed-onset PTSD and cognitive issues from a severe...
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Laura Payling: Athlete, Scientist, and Innovator on the Gut Microbiome and Using Gene Expression to Improve Health and Performance
Nourish Balance Thrive
Laura Payling, PhD, leads the animal science division for , an innovative startup using gene expression information and advanced data science to improve livestock yield and welfare. Laura’s passion for human and animal health and performance has resulted in diverse professional experiences, including academic research in food chain nutrition, clinical dietetics and consulting as a nutritionist. On today's podcast, Laura shares her passion for understanding and reigniting harmony in the human gut. She discusses her doctoral work, including research on the gut microbiome, food, and...
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bodymapping: Functional Medicine in the UK
Nourish Balance Thrive
Dr. Michael Bazlinton is a Family Doctor (GP) and the founder of the in the UK. After recognizing the limits of the National Health Service (NHS) model of practice and discovering compelling data from the low-carb community, Michael expanded his scope as a physician. In 2017, bodymapping was born. The bodymapping programme embraces five key states of being essential to wellness: nourishment, cognition, sleep, movement, and rest. Michael uses blood testing to guide clients in these areas toward optimal health and longevity. On this podcast, Dr. Bazlinton discusses the bodymapping...
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A Quest for Connection: Journeying to Authentic Relationships with Others and Yourself
Nourish Balance Thrive
Mike Brcic is an adventurer, writer, and entrepreneur with a mission to help others build connection with themselves and others. He founded , a project that brings entrepreneurs together for travel, physical challenge and authentic connection, going beyond networking and financial success. Mike founded , a highly successful mountain bike adventure company (and sold it in 2019), co-founded , and is the former Dean of Social Enterprise at the . On this podcast, Mike reflects on his Substack series, , in which he offers practical advice for creating meaningful connections...
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Mike T. Nelson on Navigating Healthspan: From Assessment to Improvement
Nourish Balance Thrive
Dr. Mike T. Nelson has spent 18 years learning how the human body works, specifically focusing on properly conditioning it to burn fat and become stronger, more flexible, and healthier. He’s been called to share his techniques with top government agencies, universities and colleges, fitness organisations and fanatics. The techniques he’s developed and the results Mike gets for his clients have been featured in international magazines, scientific publications, and websites across the globe. On the podcast today, Mike talks about his : a course for trainers, coaches and fitness...
info_outlineBack on the podcast, today is sleep, nutrition, and metabolism expert, Greg Potter, PhD. Through his academic research, public speaking, consulting and writing, Greg empowers people to make simple and sustainable lifestyle changes that add years to their lives and life to their years. His work has been featured in dozens of international media outlets, including Reuters, TIME, and The Washington Post, and he regularly contributes to popular websites, blogs, and podcasts.
In this podcast, Greg is talking about light, including the importance of getting out in the sun and also modern problems with artificial light. He discusses the impact of light on the circadian system along with up-to-date recommendations related to light hygiene. We discuss practical tips for reducing light at night (not all of which involve putting away your device), and why not getting the right kind of light might be keeping you from achieving your body composition goals.
Here’s the outline of this episode with Greg Potter:
[00:02:14] Wellics Corporate Wellness Software.
[00:06:49] The importance of light.
[00:08:30] The introduction of electric light.
[00:09:55] myLuxRecorder (Satchin Panda's app, no longer available); Podcast: How to Use Time-Restricted Eating to Reverse Disease and Optimize Health, with Satchin Panda.
[00:10:37] How light influences the circadian system.
[00:15:34] Consensus paper with recommendations related to light hygiene; Study: Brown, Timothy M., et al. "Recommendations for daytime, evening, and nighttime indoor light exposure to best support physiology, sleep, and wakefulness in healthy adults." PLoS biology 20.3 (2022): e3001571.
[00:19:13] Practical tips for reducing light at night.
[00:22:44] Increasing prevalence of myopia.
[00:23:46] Podcast: Getting Stronger, with Todd Becker.
[00:26:01] Vitamin D synthesis; Podcast: The Pleiotropic Effects of Sunlight, with Megan Hall.
[00:26:15] Effects of light on mood and cognition.
[00:27:24] Effect of light exposure patterns on cognitive performance; Study: Grant, Leilah K., et al. "Daytime exposure to short wavelength-enriched light improves cognitive performance in sleep-restricted college-aged adults." Frontiers in neurology (2021): 197.
[00:28:14] Effects of light on metabolic health.
[00:28:20] Dan Pardi podcast featuring Peter Light: Sunlight And Fat Metabolism: A New Discovery.
[00:28:52] Effect of bright and dim light on metabolism (Netherlands); Study: Harmsen, Jan-Frieder, et al. "The influence of bright and dim light on substrate metabolism, energy expenditure and thermoregulation in insulin-resistant individuals depends on time of day." Diabetologia 65.4 (2022): 721-732.
[00:30:53] Effects of light on skin and immune function.
[00:31:57] Highlights #15 (topics: Sun avoidance & exposure, increasing testosterone, Robert Sapolsky).
[00:35:14] Skyglow.
[00:36:48] Light at night and endocrine disruption.
[00:37:45] Light at night and quality/duration of sleep.
[00:38:19] Blue light in the evening interferes with sleep homeostasis; Study: Cajochen, Christian, et al. "Evidence that homeostatic sleep regulation depends on ambient lighting conditions during wakefulness." Clocks & Sleep 1.4 (2019): 517-531.
[00:38:53] Effects of light at night on sympathetic nervous system/cortisol; Study: Rahman, Shadab A., et al. "Characterizing the temporal dynamics of melatonin and cortisol changes in response to nocturnal light exposure." Scientific reports 9.1 (2019): 1-12.
[00:39:26] Effects of light at night on heart rate, HRV, insulin resistance; Study: Mason, Ivy C., et al. "Light exposure during sleep impairs cardiometabolic function." Proceedings of the National Academy of Sciences 119.12 (2022): e2113290119.
[00:41:34] Effects of moon phases on sleep; Study: Casiraghi, Leandro, et al. "Moonstruck sleep: Synchronization of human sleep with the moon cycle under field conditions." Science advances 7.5 (2021): eabe0465.
[00:45:40] Effects of individual sensitivity to light; Study: Phillips, Andrew JK, et al. "High sensitivity and interindividual variability in the response of the human circadian system to evening light." Proceedings of the National Academy of Sciences 116.24 (2019): 12019-12024.
[00:47:55] Camping and melatonin synthesis across seasons; Study: Stothard, Ellen R., et al. "Circadian entrainment to the natural light-dark cycle across seasons and the weekend." Current Biology 27.4 (2017): 508-513.
[00:48:40] Seasonal changes in thyroid hormones (meta-analysis): Kuzmenko, N. V., et al. "Seasonal variations in levels of human thyroid-stimulating hormone and thyroid hormones: a meta-analysis." Chronobiology International 38.3 (2021): 301-317.
[00:53:24] Effect of location in the world; Podcast: Morning Larks and Night Owls: the Biology of Chronotypes, with Greg Potter, PhD.
[00:54:30] Daylight Savings Time transition and traffic accidents in the US; Study: Fritz, Josef, et al. "A chronobiological evaluation of the acute effects of daylight saving time on traffic accident risk." Current biology 30.4 (2020): 729-735.
[00:56:08] Effects of Daylight Savings Time on cardiac events.
[00:56:48] Daylight Savings Time and cyberloafing; Study: Wagner, David T., et al. "Lost sleep and cyberloafing: Evidence from the laboratory and a daylight saving time quasi-experiment." Journal of Applied psychology 97.5 (2012): 1068.
[00:57:26] Circadian clock disrupted by Daylight Savings Time; Study: Kantermann, Thomas, et al. "The human circadian clock's seasonal adjustment is disrupted by daylight saving time." Current Biology 17.22 (2007): 1996-2000.
[01:00:44] Implications of permanent daylight savings time.
[01:03:37] Effects of light at night in animals; Study: Sanders, Dirk, et al. "A meta-analysis of biological impacts of artificial light at night." Nature Ecology & Evolution 5.1 (2021): 74-81.
[01:09:14] Minimizing the impact of light at night on wildlife.
[01:13:50] Human-centric lighting at hospitals; Study: Giménez, Marina C., et al. "Patient room lighting influences on sleep, appraisal and mood in hospitalized people." Journal of sleep research 26.2 (2017): 236-246.
[01:14:51] Babies in a neonatal unit did better with light/dark cycle; Study: Vásquez-Ruiz, Samuel, et al. "A light/dark cycle in the NICU accelerates body weight gain and shortens time to discharge in preterm infants." Early human development 90.9 (2014): 535-540.
[01:17:59] Effects of light at night on plants; Study: Ffrench-Constant, Richard H., et al. "Light pollution is associated with earlier tree budburst across the United Kingdom." Proceedings of the Royal Society B: Biological Sciences 283.1833 (2016): 20160813.
[01:18:50] Maturation of soybeans shifted with artificial light at night; Study: Palmer, Matthew, et al. Roadway lighting’s impact on altering soybean growth. No. FHWA-ICT-17-010. 2017.
[01:19:44] How to optimise your light environment.
[01:19:54] Incandescent vs compact fluorescent bulbs.
[01:21:58] LED lights.
[01:25:33] Light-emitting devices with screens; metamerism.
[01:26:20] Using metamerism to regulate impact of digital devices; Study: Allen, Annette E., et al. "Exploiting metamerism to regulate the impact of a visual display on alertness and melatonin suppression independent of visual appearance." Sleep 41.8 (2018): zsy100.
[01:26:51] Software that reduces your exposure to short wavelengths: Nightshift (iPhone), Night Light/Blue Light Filter (Android), f.lux.
[01:27:23] Apps to prevent short-wavelength light emissions do help; Study: Gringras, Paul, et al. "Bigger, brighter, bluer-better? Current light-emitting devices–adverse sleep properties and preventative strategies." Frontiers in public health 3 (2015): 233.
[01:27:31] Blue-light blocking app did not improve sleep; Study: Smidt, Alec M., et al. "Effects of Automated Diurnal Variation in Electronic Screen Temperature on Sleep Quality in Young Adults: A Randomized Controlled Trial." Behavioral Sleep Medicine (2021): 1-17.
[01:28:31] Blue-blockers.
[01:31:31] Recommendations for shift workers. Greg’s paper on this topic: Potter, Gregory DM, and Thomas R. Wood. "The future of shift work: Circadian biology meets personalised medicine and behavioural science." Frontiers in Nutrition 7 (2020): 116.
[01:33:34] Jet lag: Jet Lag Rooster.
[01:37:27] Find Greg on Instagram, TikTok; gregpotterphd.com
[01:37:56] Book: When Brains Dream: Understanding the Science and Mystery of Our Dreaming Minds, by Antonio Zadra.
[01:38:08] Book: The Beginning of Infinity: Explanations That Transform the World, by David Deutsch.
[01:38:32] Book: The Precipice by Toby Ord.