Full Body Red Light Therapy: What It Actually Does, and Where It Stops
By Dr. Chris Cormier, DC — Founder, The Nerve Health Institute I bought our first red light device around 2007, and for the best part of a decade people looked at me as though I had lost the plot. The same people now ask me which panel they should order. That shift has been good for the field and bad for the information in it. Red light therapy went from fringe to fashionable without passing through the stage where anyone explained the dosing — which is the part that decides whether it does anything at all. So this is the explanation I give patients: what the light does to a cell, why more of it is not better, what full body red light therapy adds over a handheld panel, and the honest list of where the evidence thins out. What the Light Is Doing to a Cell The technical name for this is photobiomodulation, and the mechanism is reasonably well described. Inside your cells, mitochondria produce energy through a chain of enzymes. One of them — cytochrome c oxidase — absorbs light in the red and near-infrared range particularly well. When it does, the enzyme works more efficiently, and the cell produces more ATP, which is the currency everything else in your body spends. Two wavelength ranges matter. Red light, roughly 630 to 660 nanometres, works closer to the surface — skin, superficial tissue. Near-infrared, roughly 810 to 850 nanometres, penetrates considerably deeper, which is why it is the range of interest for muscle, joint and nerve tissue. Near-infrared is also a useful reminder that light is not only what you can see. Point a night-vision camera at someone in a dark room and they appear, because the body emits and interacts with infrared constantly. That part of the spectrum is not exotic. It is what we evolved under — roughly half of what reaches us from the sun sits in the near-infrared range. Why I Treat Light as a Nutrient Everything we do at the clinic is built on a framework I developed over nearly three decades. I call it the OWL Method — Oxygen, Water and Light — because these are not wellness concepts, they are what your cells are physically made of and run on. Frequency, magnetism and nutrients sit alongside them. Light belongs in that list for a straightforward reason. Your brain and spinal cord, and the 88 major nerves branching off them, run on light energy travelling like fibre optics out to trillions of cells. We evolved outdoors, and we now spend the overwhelming majority of our lives inside, under glass that filters infrared out and clothing that blocks what gets through. Most people are not short of light because they are unlucky. They are short of it because modern life is built that way. More Is Not Better: The Part the Industry Does Not Advertise This is the most important section on this page, and it runs directly against how red light therapy is usually sold. Photobiomodulation follows what researchers call a biphasic dose response. Too little light does nothing. The right amount produces the effect. And past a certain point the benefit flattens and can reverse — more exposure makes the result worse, not better. I describe it to patients as a fuel tank. Each cell has one, and the goal is to fill it and keep it topped up. Nobody improves their car by holding the pump open after the tank is full. Which means the honest version of this therapy is unglamorous: sensible session lengths, sensible frequency, and resisting the logic that if twenty minutes is good then an hour must be better. I use the TheraLight 360 at least once a week, not every day. Any clinic or brand encouraging you toward constant exposure is either unaware of the dose-response literature or choosing to ignore it. What the TheraLight 360 Is, and What Full Body Red Light Therapy Adds The TheraLight 360 is a full-body bed delivering several wavelengths of red and near-infrared light at once, in a private room. When we acquired ours it was the twelfth unit in the world; they are now in university athletic programmes and professional sports facilities across the country. It looks like a tanning bed and it is nothing like one. A tanning bed delivers ultraviolet light, which damages skin. This delivers red and near-infrared, which are a different part of the spectrum entirely and carry no UV. The practical difference with full body red light therapy is coverage and consistency. A handheld panel treats whatever you point it at, for as long as you hold it there, at whatever distance you happen to choose — and distance matters enormously, because the intensity reaching your skin falls away quickly as you move back. A full-body bed delivers a controlled dose to the whole surface at once, in a fixed geometry, in a session short enough that people actually keep doing it. We also run other light devices for targeted work — clinical lasers and Contour Light pads that wrap around a specific area. The bed is the saturation tool; the others are precision tools. Why We Test Before We Saturate Here is where our use of light differs from almost everywhere else offering it. Most places put you in a bed. We assess first. Your brain is a power company wired to trillions of cells through those 88 major nerves, and we test function across all of them to map where the signal is running below capacity — what we call EnergyFlow. It is closer to walking a breaker box than to asking whether the building has power. That work is set out on the Quantum Neurology page. Once we know which regions are underpowered, we work on those directly, and then use the bed to saturate the whole system. Light as a finishing step on top of a specific plan does more than light as a standalone service — and it