1. Pain meaning and nature, gate control theory (GCT) - pain as a perception and individuals action as an active responder and not just a passive experience a variability of pain role of multiple causes and organic and psychogenic causes of pain. 2. BIO FEEDBACK - harnessing the power of your mind and becoming aware of what's going on inside your body and controlling it. BIOFEEDBACK PROCEDURES and Bio Feedback Relaxation Techniques deep breathing, progressive muscle relaxation, guided imagery, mindfulness meditation , TYPES OF BIO FEEDBACK THERMAL BIO FEEDBACK, PHOTO PLETHYSMOGRAPH OR HEART RATE VARIABILITY HRV MONITOR, ELETTROMIOGRAFIA EMG BIOFEEDBACK, PNUEMOGRAPH, ELECTROMYOGRAPHY EMG BIO FEEDBACK, ELECTRO DEMOGRAPH, ELECTROENCEOPHELO GRAPH .