Fibromyalgia syndrome, a chronic disorder characterized by widespread musculoskeletal pain, fatigue, and sleep disturbances. Often includes cognitive difficulties and mood issues.
Acronym from 'fibromyalgia syndrome,' where 'fibromyalgia' comes from Latin 'fibra' (fiber) + Greek 'mys' (muscle) + Greek 'algos' (pain). The term was coined in 1976 to replace earlier names like 'fibrositis,' reflecting better understanding that inflammation wasn't the primary cause.
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