Active Isolated Stretching and Strengthening: The Mattes Method also called AIS releases chemical toxins from the fascia very effectively. AIS helps move the energy down and out the gall bladder channel (Chinese medicine) which carries the load of chemicals into the body and out of the body. The stretching opens up the pathways of flow of blood (oxygen) and nutrition into the cells and wastes out of the cells, as well as opens up the energy flow through all the energy meridians hence all organs of the body, bringing fresh blood (oxygen and nutrition) into the tissues to help metabolize and get rid of toxic waste. Active Isolated Strengthening guarantees a more vigorous flow and helps stabilize alignment at the joints to keep the energy meridians (they lay in the same fascial plane that you are restoring with AIS) open.