Sunlight Matters

What if your computer screen could heal you instead of harming you? In this episode of Sunlight Matters , we’re joined by Dr Peter Veto and Liliana Lettieri , the visionary team behind Pixun — a company pioneering solar-powered, full-spectrum displays that use real sunlight instead of artificial backlighting. Peter and Liliana share their personal journeys with light sensitivity , screen-induced i...

In this powerful and eye-opening episode, Dave speaks with Theresa Bug , a former German police officer turned online health coach, holistic nutritionist , and advocate for natural light, grounding, and mitochondrial health . 🌿 Theresa shares her inspiring journey from a high-stress career in law enforcement—across Paris, London, Israel, and Africa—to deep healing through sunlight exposure , circ...

In this illuminating episode, we're joined by Austrian engineer Viktoria Neumueller , a passionate advocate for sunlight-optimized architecture and energy-efficient building design . With a background in planning heating, cooling, and ventilation systems, Viktoria brings rare insight into how thoughtful building orientation and solar exposure can dramatically reduce heating costs, enhance com...

In this episode, Dave chats with Professor Glen Jeffery, a neuroscientist at University College London’s Institute of Ophthalmology, whose research investigates how light, particularly long-wavelength red and infrared, influences human health, metabolism, and ageing.  Glen Jeffery is recognised as one of the world's leading researchers in exploring how light interacts with our bodies.  Glen e...

Dave speaks with Dr. Nicholas Witton , a sleep medicine and light researcher, about the critical role of natural light, especially near-infrared (NIR) light, in human health. Nicholas explains how we've shifted from living outdoors to spending over 90% of our time indoors under artificial light, particularly LEDs , which emit mainly blue light and lack the full spectrum, including the NIR wav...

What if your home or office is silently shaping your health, your mood, and even your future? In this eye-opening episode, Dave sits down with Dr. Mandana Khanie, Lecturer in Health and Wellbeing in Sustainable Buildings at UCL and Deputy Director of the Light and Lighting MSc Program. Together, they explore how the architecture of our indoor lives, where we now spend 90% of our time, profoundly i...

In this illuminating episode of Sunlight Matters , David Wallace is joined by Niko Gentile and Agnieszka Czachura from Lund University’s Energy and Building Design group. Together, they explore the science, perception, and policy around sunlight and daylight, and why we need to care more than ever. From the overlooked distinction between daylight and sunlight to the historical biases in building r...

In this episode of Sunlight Matters , Dave welcomes daylight and lighting expert Paul Rogers of ACC Glass and Facade Consultants. Broadcasting from Stockholm and the UK, they explore the profound impact of sunlight and daylight on architecture, urban planning, and human well-being. From the technical distinctions between daylight and direct sunlight to the emotional resonance of a well-lit home, P...

In this episode of Sunlight Matters , hosts Dave and Georg welcome Swedish sleep and light researcher Arne Lowden for a fascinating conversation about the science of light, circadian rhythms, and how our bodies and minds are profoundly shaped by solar exposure. Dr. Lowden, author of the book Survive the Winter , shares powerful insights into how lack of natural light affects sleep, mood, and long-...

Welcome to the second episode of Sunlight Matters. In this episode, we explore the fascinating connection between real estate, artificial intelligence, and the importance of sunlight with Giulio, the founder of Masterkey. Masterkey is revolutionizing the home buying experience by giving buyers the tools to make more informed decisions through AI-powered property analysis. One of the most exciting...

In this episode of Sunlight Matters, host David Wallace interviews Georg, the founder and CEO of Shadowmap, a platform designed to visualize sunlight and its effects on various environments. Georg shares his personal journey, the technological innovations behind Shadowmap, and its applications in real estate and health. The conversation emphasizes the importance of sunlight for well-being and how...