Biofeedback is a mind–body technique in which individuals receive feedback signals based upon their Body (and Brain in the application of Neurofeeback) feedback loops to clear dissonant patterns, re-harmonizing the physiology and neurology back into resonance. In addition, they learn how to modify their physiology for the purpose of improving physical, mental, emotional and psychological health. The contributions of many earlier researchers and practitioners can be cited as forerunners of biofeedback: Edmund Jacobson commenced research at Harvard University in 1908, and throughout the 1920's and 1930's worked to develop progressive muscle relaxation as an effective behavioral technique for the alleviation of neurotic tensions and many functional medical disorders. Over the decades the technology has and continues to advance providing even a greater application of uses in a greater number of conditions such as the ones listed here under "Services" and beyond.
Technology has advanced so much so, that the in-clinic treatments are extremely passive and precise to each individual's need and pattern.