A pain in the neck, a pain in the lower back, a headache...Did you know that 75 million people in the US suffer from chronic pain or pain that reccurs. Chronic pain can rob you of a normal fruitful life. Physically and mentally it can wear you down. A 2004 Study showed thatpeople who suffer from chronic backaches have brains that are 11% smallerthan those people who do not suffer. It is not understood why. "It is possible it's just the stress of having to live with the condition," said study leader A. Vania Apkarian of Northwestern University. "The neurons become overactive or tired of the activity."