“…The maintenance of physical and social activities likely serves as an important buffer against the negative effects that often accompany illness. Physical activity has been shown to improve mood, wellbeing, and self-efficacy, and social activities have been linked to the absence of depression (Strawbridge, Cohen, Sherma, & George, 1996), increased longevity (Berkman & Syme, 1979), and positive well-being (Lomranz, Bergman, Eyal, & Shmotkin, 1988;Mancini, 1978;Reich & Zautra, 1981;Russell, 1990;Steinkamp & Kelly, 1987;Zimmer et al, 1995). The role of physical and social activities in maintaining positive well-being during illness episodes has not been explored in prospective studies.…”