Episode Details

You know that moment when early morning sunlight catches you the right way and something inside you just settles. The tension in your shoulders drops. The mind quiets. Most of us write it off as a nice moment and move on. But what if light itself, specific wavelengths delivered in specific ways, is one of the most powerful tools we have for supporting brain and body wellness?

Avik sits down with Sarah Turner, neuroscientist and co-founder of CeraThrive, to explore the science of photobiomodulation. They cover how near-infrared light penetrates the skull and reaches the brain, why mitochondria respond to it the way they do, what most of us are missing by living indoors under blue-lit screens, and the simplest free way anyone can start: stepping outside at sunrise.

Sarah Turner is a neuroscientist, former pharmaceutical research scientist, and the co-founder and CEO of CeraThrive. She holds a postgraduate degree in Clinical Neuroscience from Roehampton University and BSc degrees in Psychological Sciences and Nutritional Medicine. Her company developed the CERA System, the first FDA-listed red light therapy device specifically targeting the gut-brain axis. She also co-hosts the Rebel Scientist biohacking podcast and is pursuing a Photobiomodulation diploma at the University of Montpellier.

• Near-infrared light penetrates the skull and reaches the surface of the brain. It is not a wellness metaphor, it is a measurable biological process.
• Mitochondria receive light at specific wavelengths and respond by producing more ATP, the energy molecule the body uses for everything. More energy means better function, especially in the brain.
• Most of us live in a state of near-infrared deficiency. We are an outdoor species living indoors under blue-lit screens. Some of what we call fatigue, brain fog, or low mood is actually a missing nutrient: natural light.
• Sleep is not a passive state. It is an energy-intensive process where the brain flushes waste, lays down memories, and repairs itself. Without enough cellular energy, those processes do not complete properly.
• Photobiomodulation for brain health is still in the early stages of clinical validation. Promising data is emerging for cognitive enhancement, mood, sleep, and even neurodegeneration, but specific medical claims require more research.
• The cheapest, simplest intervention is free. Step outside at sunrise. See natural light before you see your phone. The body knows what to do with it.

• Website: The Cera System | Optimize the Gut-Brain Axis! – CeraThrive
• LinkedIn: https://www.linkedin.com/in/sarah-turner-cerathrive/

• Listen Now