Each of us has his favorite color, selects his clothes in tone, surrounds himself with objects relevant to their moods and emotions or likes a certain color of flowers. The colors we see through the retina. When the electromagnetic wave length from 400 to about 700 nm falls on our eye - makes a vivid image.

The waves have different lengths, each of them on our retina creates a different color, and so created the colors: red, yellow, green, blue, etc. Mixture of many waves of different lengths allows us to capture shades of color.

Everyone knows that the colors have on us very impressed, raise our senses, such as krwiście stimulates red, blue and green soothes cools. Therefore, the color used successfully to treat many diseases and the study of the body's energy and determination of severity of the disease.

It has been proved with a certain frequency of light is necessary for the body to regulate many physiological processes.