Biofeedback is a relaxation technique for learning to control a
body function that is not normally under conscious control, such as skin
temperature, muscle tension, heart rate, or blood pressure. Biofeedback
techniques can be used to manage tension and migraine headaches, back pain,
panic or anxiety attacks, irritable bowel syndrome, fibromyalgia, and other
conditions that are helped by reducing muscle tension and controlling other
body functions.
Learning biofeedback requires practice in a lab or other setting
under the guidance of a trained therapist. Home feedback units are also
available.