Deeply penetrating wavelengths of light energy are absorbed by photoreceptors in the mitochondria of compromised cells to regain and restore vitality naturally. This process increases the production of adenosine triphosphate (ATP) – the fuel that drives all cells. The resulting boost in cellular energy leads to a cascade of metabolic events which can increase micro-circulation and decrease arthritic and joint pain, muscle spasm, and muscle and joint stiffness.