Firstly Biofeedback is a technique on how to control your muscles that are not normally controlled for example blood pressure or your heart rate. This is meant to reduce ANS activity therefore reducing the symptoms related to stress such as illness. An individual participating in Biofeedback would be attached to a machine that produces feedback about some physiological activity. For example auditory or visual signals would be produced to indicate changes in the patients heart rate. It is possible even to control your own brain waves using biofeedback. The individual is also trained in how to reduce levels of stress that have been discovered. The biofeedback involves three stages 1: Developing an awareness of the particular response, 2: Learning ways to control the physiological response in quiet conditions...