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Building on prior conceptual schemes, this article presents a sociomedical model of disability, called The Disablement Process, that is especially useful for epidemiological and clinical research. The Disablement Process: (1) describes how chronic and acute conditions affect functioning in specific body systems, generic physical and mental actions, and activities of daily life, and (2) describes the personal and environmental factors that speed or slow disablement, namely, risk factors, interventions, and exacerbators. A main pathway that links Pathology, Impairments, Functional Limitations, and Disability is explicated. Disability is defined as difficulty doing activities in any domain of life (from hygiene to hobbies, errands to sleep) due to a health or physical problem. Feedback effects are included in the model to cover dysfunction spirals (pernicious loops of dysfunction) and secondary conditions (new pathology …