The document discusses Mitchell's relaxation technique, which uses diaphragmatic breathing and isotonic muscle contractions based on reciprocal inhibition. It can be used to treat respiratory, orthopedic, post-natal, and psychiatric conditions. The technique promotes relaxation and reduces muscle tension and pain perception. It is effective for pre-labor Braxton Hicks contractions and realigning stress-related postures by moving to a new position and increasing awareness of body position. Mitchell's relaxation technique can also help conditions involving a high tone pelvic floor like painful bladder syndrome.