Fibromyalgia
Epidemiology and Pathophysiology
Fibromyalgia is characterized by widespread pain, fatigue, disturbed sleep, and cognitive dysfunction. It is common (prevalence, 2%-3%), particularly among individuals of lower socioeconomic status and/or educational level. Prevalence increases with age, peaking around the seventh decade. The female-to-male ratio is approximately 3:1.
Early paradigms of fibromyalgia a