The Mitochondrial Secret and How Red Light Therapy Powers Your Cells
Sarah Turner is the Founder of CeraThrive, a wellness company specialising in photobiomodulation and its impact on the gut-brain connection. With a background in neuroscience and biohacking, Sarah is dedicated to advancing innovative therapies that optimise health, longevity, and performance.
Ever wondered why red light therapy is gaining traction in wellness circles? It turns out that it taps into a deeply rooted biological mechanism that fuels your energy, sharpens your healing, and even connects you to your ancient microbial ancestors. Here’s what you need to know about the tiny powerhouses inside your cells, and why they respond so well to light.
What are mitochondria and why are they important?
Mitochondria are small structures found in nearly all human cells. Their main job is to convert nutrients into a usable form of energy called ATP (adenosine triphosphate). This energy is what keeps your body running. No ATP? No life. But there’s more to mitochondria than meets the eye.
Unlike other parts of the cell, mitochondria have their own DNA. This peculiar feature suggests they were once independent organisms. According to the endosymbiotic theory, formally proposed by biologist Lynn Margulis in 1967, mitochondria originated from bacteria that were engulfed by a larger cell roughly 1.5 billion years ago. Instead of being digested, the two struck a deal, a deal that still powers life today.
Mitochondria on the move
Far from being static, mitochondria are surprisingly mobile. They can transfer from one cell to another, especially when cells are under stress or in need of repair. This process, known as mitochondrial transfer, has been observed in everything from brain and lung cells to cancer cells. It appears mitochondria can lend a metabolic helping hand or, in some cases, give unhealthy cells an unfair advantage.
How red light therapy stimulates mitochondria
So, how does red light actually affect these organelles? The key is a mitochondrial enzyme called cytochrome c oxidase, a crucial player in the electron transport chain. This chain is the internal system mitochondria use to produce ATP.
When red or near-infrared light hits cytochrome c oxidase, it boosts the enzyme’s activity. This helps electrons flow more efficiently, increasing ATP production. Think of it as flipping a switch in a power station; everything speeds up, and more energy gets delivered to where it’s needed. The result? Improved cell repair, reduced inflammation, and better overall cellular performance.
Mitochondria: Built-in light sensors
But mitochondria aren’t just passive energy producers, they also act as light sensors. They respond to specific wavelengths by communicating with the cell’s nucleus, influencing which genes get turned on or off. When exposed to red and near-infrared light, mitochondria activate a cascade of healing responses, including protein synthesis and anti-inflammatory effects.
This is why regular exposure to near-infrared light is so important. Without it, your mitochondria may become sluggish, leading to what I call RISE, Reduced Infrared Spectrum Exposure. This condition is associated with slower healing, low energy, and weakened cellular function.
Take action for your mitochondria
Understanding how light affects your mitochondria is more than a scientific curiosity; it’s a practical insight that can enhance your well-being. If you’re curious about how red light therapy can support your cellular health, visit here or contact us here.
Sarah Turner, CEO CeraThrive and Red Light Therapy Expert
Sarah Turner is the founder of CeraThrive, a company advancing wellness through photobiomodulation and its impact on the gut-brain connection. With a background in neuroscience and biohacking, she is passionate about exploring innovative therapies to optimise health and performance. Sarah also co-hosts the "Rebel Scientist" podcast, where she explores cutting-edge topics in wellness and longevity.
References:
Conroy, G. (2025). Mitochondria on the move. Nature, 640, 302–304.
Ryu, K. W., et al. (2024). A reprogramming of mitochondrial structure and function during starvation. Nature, 635, 746–754.
Hayakawa, K., et al. (2016). Transfer of mitochondria from astrocytes to neurons after stroke. Nature, 535(7613), 551–555.
Baldwin, J. G., et al. (2024). Mitochondrial donation enhances T-cell therapy in cancer. Cell, 187(24), 6614–6630.e13.
Luz-Crawford, P., et al. (2019). Mesenchymal stem cells from rheumatoid arthritis patients fail to inhibit Th17 cells. Stem Cell Research & Therapy, 10, 232.
Islam, M. N., et al. (2012). Mitochondrial transfer from bone-marrow–derived stromal cells to pulmonary alveoli protects against acute lung injury. Nature Medicine, 18(5), 759–765.
Margulis, L. (1967). On the origin of mitosing cells. Journal of Theoretical Biology, 14(3), 225–274.
