Biofeedback is a process that involves measuring a subject’s specific and quantifiable bodily functions such as the activity of brain waves, blood pressure, heart rate, skin temperature, sweat gland activity, and muscle tension. This information is conveyed to the patient in real-time.
This raises the patient’s awareness and therefore the possibility of conscious control of those functions.
By providing the user access to physiological information about which he or she may be unaware, biofeedback may allow users to gain control of physical processes previously considered an automatic response of the autonomous nervous system.
However conclusive evidence is lacking due to paucity of undisputed scientific research in the possible application of biofeedback. Many claims have been made but the applications of real biofeedback are limited and specific