They discovered that if they used a pulsed laser light, the tissue healed rapidly. If they gave a continuous beam, it sedated the cell and reduced the pain. When a single frequency pulsed light hit the cell, it actually stimulated the cell to start producing more protein than it normally does, and as a result, the cell would heal. Even when they took the light away, the cell continued its healing. The continuous beam caused the cell membrane to relax; it reduced pain and inflammation and made muscle tissue relax.

About ten years later at the University of Chicago, researchers discovered that the average wavelength of cell tissue in the human body ranged between 600 nanometers and 720 nm; 660 is the mid-point. So in essence, the reason a 660 nm works better than any other single frequency is because it is closer to the resonant frequency of cell tissue. The other reason is that 660 nm absorbs better in hemoglobin.

LED light diffuses; the single frequency laser does not. With this diffusion, the cell can actually be in control of the treatment and shut off the molecules when it was done. But with the laser, the cells are no longer in control; the doctor or the practitioner applying the laser is in control. If he does it too long or with too much strength, you would not only heal the tissue, but you would start a deterioration again. The use of light emitting diodes eliminated a major draw back of lasers, and light can safely be applied into such sensitive areas as the eyes and around the face. LEDs allow this technology to be safely used by average people in their homes. Tiina Karu, Ph.D. of the Laser Technology Center in Russia, and affiliated with the University of California at Berkely, published a study in Health and Physics Digest called "Photobiological Effects of Lasers" which discusses photobiological stimulation without laser light. The article explains that you can do laser treatment without using laser light, by using light emitting diodes which are much safer. Since the cells are basically in control of the process, there is no way to overuse light..

Acupuncturists discovered that single frequency light could activate acupressure points. Pulse light could stimulate it; continuous light could sedate the acupuncture points. But they also discovered that light applied to a meridian end-point can actually be traced flowing through the meridian to the organ acupuncture points. The meridian system is a useful pathway for getting light deeper into the body, so if you are treating things like asthma in the lungs, there is an alternate method of getting light into the lungs.

As we developed more types of lights with different geometrical shapes, we were able to actually get light deeper into the body without going through the meridians. Initially, single frequency light penetrated approximately an inch and a half, but today, larger units can penetrate up to eight inches. It will go through the skull. We use it on strokes, concussions and internal problems in the brain. Excellent studies have been done using light for pain relief, degenerative osteoarthritis, carpal tunnel tendonitis, skin ailments, acne, psoriasis, healing of the sinus cells, throat and ear problems, whiplash and lower back problems.

You can even get light into the blood stream. One of the best ways is through your belly button, because the aorta artery is behind the belly button. So if you insert the light there for 20 minutes, every drop of blood in the body will pass in front of the light, increasing the activity of your white cells, red cells, B-cells and T-cells, so you can boost your whole immune system.

If you use lasers or light-emitting diodes, it can actually speed up healing by a factor of five. If you have chronic conditions like osteoarthritis or whiplash, conditions that have not responded or are deteriorating, the use of laser and LED light has actually stimulated regeneration.

We fond that when we treat the person with light, or with heat, that when the body starts healing, it shifts into what is called a healing profile where beta waves disappear, and alpha, theta and delta appear like you wouldn't even find in a yogi.