Fibromyalgia syndrome is a common and chronic disorder characterised by widespread muscle pain, fatigue, and multiple tender points. The word fibromyalgia comes from the Latin term for fibrous tissue (fibro) and the Greek ones for muscle (myo) and pain (algia). Tender points are specific places on the body -- on the neck, shoulders, back, hips, and upper and lower extremities -- where people with fibromyalgia feel pain in response to slight pressure. Although fibromyalgia is often considered an arthritis-related condition, it is not truly a form of arthritis (a disease of the joints) because it does not cause inflammation or damage to the joints, muscles, or other tissues. Like arthritis, however, fibromyalgia can cause significant pain and fatigue, and it can interfere with a person's ability to carry on daily activities. Also like arthritis, fibromyalgia is considered a rheumatic condition. This book presents the latest research in this field.