Functional disabilities, the final common pathway of all medical and surgical conditions, are frequently preventable and treatable. Etiologic diagnosis of functional problems is important so that one does not miss the opportunity to improve and increase independence. Rehabilitation of the elderly can be a special problem. Their habits are longstanding and difficult to change. It is important to establish realistic and attainable goals with the patient. Not every habit needs to be altered. What is more important is that the patient safely achieve maximum independence. An environmental assessment is "key" to a full understanding the limitations of function, and how well management strategies can be integrated.