Alex Fergus - Light Therapy Insiders

Send us Fan Mail Sleep is one of the biggest levers for your health—and one of the most overlooked. In this episode, we break down the latest science on the use of red light therapy to improve sleep quality, including deep sleep, recovery, and melatonin production. With over 10 studies now available, the evidence is stronger than ever—and some of the results are surprisingly powerful.  Show Notes...

Send us Fan Mail Red light therapy can be a real performance tool — not just something you do for “recovery.” This video breaks down what the latest research on exercise performance says about muscle endurance, strength, fatigue, inflammation, and VO₂ max. The key takeaway is simple: timing matters. Most of the best results show up when red light therapy is used before your workout (often a few ho...

Send us Fan Mail Brain photobiomodulation is rapidly evolving from early-stage curiosity into a serious area of research. In this interview, Bart Wolbers speaks with Liam Pingree and Dr. Ramona von Leden to explore how light therapy is being used to improve cognitive function, support brain health, and potentially impact neurodegeneration. Show Notes This episode breaks down the current state of b...

Send us Fan Mail Can red light actually help reduce belly fat, or is it just another fitness myth? In this episode, Bart Wolbers breaks down what the science actually says about red and near-infrared light for fat loss. We look at human and animal studies, changes in waist and hip circumference, why weight often stays the same, and how red light may influence fat mobilization without traditional d...

Send us Fan Mail Worried that red light therapy could damage your eyes? In this video, Bart Wolbers breaks down the real science behind red + near-infrared light and eye safety, including a conservative protocol (around 40–50 mW/cm²) and why that dose is tiny compared to what humans are exposed to outdoors. He also covers where blue light and UV fit in, what “safe exposure” really means, and pract...

Send us Fan Mail Red light therapy isn’t magic, but understanding how it works can change how you use it. In this science-focused episode, Bart explains the core mechanisms behind red light therapy and why understanding the “how and why” is crucial for achieving real-world results. This video explores the three primary mechanisms of photobiomodulation supported by current research, including mitoc...

Send us Fan Mail Light therapy has moved from alternative wellness into mainstream research, with thousands of studies now published. This course breaks down the science behind light therapy and shows you how to use different wavelengths safely and effectively in real-world settings. Welcome to the Light Therapy Course. This short introduction explains what the course covers, how to use it, and wh...

Send us Fan Mail Photobiomodulation for the brain is getting serious scientific attention, especially for mild cognitive impairment (MCI) and early Alzheimer’s risk. In this episode of Light Therapy Insiders , Bart Wolbers speaks with Dr. Neda Rashini, a physician-scientist focused on neurodegenerative research, about transcranial photobiomodulation, pilot trial results, mitochondrial biomarkers,...

Send us Fan Mail In this episode of Light Therapy Insiders , Ari joins me, Bart Wolbers, to unpack how red and near-infrared light interact with human biology, why mitochondria are central to health and aging, and where common assumptions about dosing, heat, and device performance break down. Ari is the author of The Ultimate Guide to Red Light Therapy , recently released in a fully revised and ex...

Send us Fan Mail 🎙️ Episode Overview In this episode of Alex Fergus – Light Therapy Insiders , Bart Wolbers sits down with Sarah Turner , neuroscientist and founder of SARAH Thrive , to explore how red and near‑infrared light therapy can be used not just to manage symptoms—but to elevate cognition, gut health, mood, and overall human potential. Rather than focusing solely on illness, Sarah makes a...

Send us Fan Mail Alex sits down with Tom Sanderson , co-founder of Kineon , to talk through what’s new at the company — including the upcoming Move Plus 2.0 , Kineon’s new modular roadmap (including Heel ), and why the future of red light therapy may be heading toward app control, smarter targeting, and sensor-driven feedback . Tom also shares Kineon’s broader vision for 2026 and beyond , includin...

Send us Fan Mail How deep does red light therapy actually penetrate — and are we all underdosing? In this episode, I’m joined by Tom Kerber from SunPowerLED, a veteran electronics designer with decades of experience in high-power LED systems and photobiomodulation. We break down the real-world physics of wavelength, power density, treatment area, and heat — and why many “rules” around dosing may b...

Send us Fan Mail Can red light therapy really improve fertility in both men and women? In this episode, Bart Wolbers sits down with Forrest Smith, CEO of Kineon, to discuss groundbreaking research and real-world results on how light therapy affects PCOS, endometriosis, testosterone levels, and sperm health. Show Notes Fertility challenges affect millions worldwide — but new research shows red ligh...

Send us Fan Mail In this episode, Bart Wolbers sits down with Forrest Smith, CEO of Kineon, live from the Health Optimization Summit in Austin, Texas. Forrest has spent years at the forefront of photobiomodulation technology, and today, he shares insights into one of the most exciting frontiers in wellness: light therapy and gut health . Together, they explore the latest research linking red and n...

Send us Fan Mail Hi, I'm Alex Fergus . Welcome back to the show. Today, I’m thrilled to bring you a follow-up interview with Dr. Randy Beck from the Institute of Functional Neuroscience in Australia. Our first conversation was one of the most popular—and yes, one of the most controversial—episodes we've ever done. In this second deep dive, we once again explore the fascinating intersecti...

Send us Fan Mail For years, scientists have explored a fascinating idea—treating the gut to influence the entire body, particularly the nervous system. They discovered that when rats were given Parkinson’s disease and then treated with infrared light on the abdomen , their symptoms improved. This research highlights how powerful the gut is in neurology and its connection to the heart and even rena...

Send us Fan Mail Welcome back to the show! Today, I’m sitting with Austin from Vielight —Vielight Photobiomodulation Therapy | At-Home Brain Photobiomodulation. Austin has been with the company for a long time and knows this technology inside and out. I caught up with him at PBM 2024 in London , where we discussed Vielight’s latest innovations, the science behind red light therapy, and its impact...

Send us Fan Mail In today’s episode, I speak with Arne Grinsted from PowerMedic, a pioneer in red light therapy with over 40 years of experience.  We explore the differences between LEDs and lasers, Arne's transition from 900 nm to 808 nm light, and his fascinating journey in helping create over 500 "laser babies."  Arne also shares insights into the benefits of red light therapy fo...

Send us Fan Mail "Welcome to today's episode, where we're shining a light on the cutting-edge world of red light therapy beds. Josh Grey joins me from Thor Laser, who's here to demystify the science and technology behind these powerful wellness tools. Many people think red light therapy is as simple as shining light on your body three times a week. But as you'll discover t...

Send us Fan Mail "Welcome to today's episode where we dive deep into the fascinating world of photobiomodulation and red light therapy. I'm sitting down with Aaron from Kineon, who is heavily involved in PBM research and development. In this illuminating conversation, we'll explore the evolution of light therapy devices, from LEDs to lasers, and uncover why gut-targeted treatme...

Send us Fan Mail I recently had the pleasure of sitting down with Tom Kerber from SunPowerLED at PBM 2024, and let me tell you, this conversation is not one to miss. Tom's expertise and passion for his field caught my attention immediately, and I knew I had to bring his insights to our listeners. In this episode, we'll dive deep into the ongoing debate of LEDs versus lasers in light ther...

Send us Fan Mail Today, we're joined by Sarah Turner, the innovative force behind Cerathrive. Sarah has just launched her exciting new product, Cera Thrive, and she's here to share her latest discoveries.   From groundbreaking research on brain health and red light therapy to an upcoming course in France (available online too!), Sarah's insights are reshaping our understanding of we...

Send us Fan Mail Welcome to today's episode, where I sit down with Professor Michael Hamlin, a leading expert in red light therapy. With years of experience, multiple publications, and deep involvement in product development, he is a go-to authority in this field.  In this interview, we explore key topics like how red light therapy works, contact vs. non-contact treatments, dosing, full-body...

Send us Fan Mail Today, we are diving into the fascinating world of light therapy and its impact on our health and well-being. Joining us is the CEO and founder of Block Blue Light, Daniel Ebbett.  In this episode, we'll be exploring the science behind red light therapy, the importance of circadian rhythms, and the role of blue light in our sleep patterns.  Get ready for an enlightening conve...

Send us Fan Mail Today, we're diving into red light therapy and its impact on eye health—specifically, eye safety when using it. We'll cover all the essentials you need to know about protecting your eyes while reaping the benefits of red light therapy. Joining me is Bart Wolbers, the mastermind behind this channel and Light Therapy Insiders. Bart is the researcher and writer of some trul...