Pain medications are only effective for short term management of a medical condition. These drugs are often prescribed following a surgical procedure or immediately after an injury. Over an extended period of time, these medications may have negative side effects which cause harm to our bodies. After a short period of time, these drugs also lose their effectiveness due to our body's development of something called "tolerance". Our nervous system produces natural pain reducing chemicals called neurotransmitters (examples are "Endorphins" and "Serotonin"). Many pain reducing drugs (narcotics) interfere with our natural pain suppressing chemicals or they produce "tolerance" which makes our own neurotransmitters ineffective. Exercise, psychological treatment and biofeedback increase the effectiveness of our natural pain suppressing chemicals.