Many people with fibromyalgia continue to work full or part time. But the chronic pain and fatigue associated with fibromyalgia often make working very difficult. If you are employed, it's important to learn about managing fibromyalgia symptoms and coping with pain and fatigue.
Definition of SET THEORY. : a branch of mathematics or of symbolic logic that deals with the nature and relations of sets.
Theory = a proposed system of ideas indended to explain something. Model = a (probably simplified) description of that system, which allows theoretical predictions to be made and tested (either providing evidence for or against the theory). Therapy = A treatment of a disorder in light of a theory and model.