NASA discovered the miracle technology of light therapy, when they used in plant growth experiments. LED light therapy offers a drug-free and non-invasive way to relieve pain and speed up the healing process. LED light therapy has found to speed up the healing of injuries and heal bone marrow transplant patients as well as to offer relief for cancer patients. The groupings of red and infrared LED lights ease pain and accelerate the healing process. They also trigger the production of endorphins, which helps to facilitate long-term pain relief. They also stimulate the discharge of Adenosine Triphosphate (ATP), which is a major carrier of energy to the cells and replaces damaged cells more quickly by increasing RNA and DNA synthesis.

http://www.backpainsymptoms.com/led-light-therapy-may-help-back-pain/