“…It should be noted that these effects were present after we controlled for both optimism and negative affect. The association of age with reducing activities in response to illness is consistent with studies from leisure sciences (e.g., Jackson & Dunn, 1988;Searle, Mahon, Iso-Ahola, Sdrolias, & van Dyck, 1995), which indicate that older persons are less likely to benefit from the association of high levels of general activity with increased positive affect (Holahan, 1988) because they are less likely to replace activities as they age (Searle, Mactavish, & Brayley, 1993). Our data suggest that the ability to sustain activity influences subsequent positive affect in the face of chronic illness and does so over and above the benefits of an optimistic outlook.…”