Quantum biofeedback has been scientifically proven to reduce stress and hyperstension that may be related to illness, injury, or emotional trauma. EPFX is intended to help you relax and re-educate your muscles to reduce the stress and pain. The AMA and NIH both agree that stress is the most common cause of all disease. Most alternative health professionals believe stress reduction results in the body being able to heal itself. Research clearly shows that biofeedback does reduce stress.