This theory was developed by Dr. William H. Fitzgerald, it which is considered the father of the current Reflexology.
This theory defines how in the body exist longitudinal lines, called meridians, which divide the body into ten zones.
The meridians extends from head to toe. In the next neck and shoulders area meridians are separated, being in the arms and legs five equal parts, respectively. The meridians cross all organs and tissues reproducing this area as in the reflection, in our case on the feet.
Through manipulation of the reflecting area, the stimulation reaches the desired organ and eventually see the result in the rest of the body. We may also use this technique as prevention, pain in the foot reflex zone will indicate a disorder of the body indicated.