This chapter seeks to gauge the extent to which the continuity of leisure activities can counter the negative effects of frailty on well-being. The cognitive and affective dimensions of well-being are both taken into consideration. Two trajectories of frailty taking place between two successive waves are examined: (a) the onset of frailty and (b) the aggravation of the condition. For both trajectories, the level of activity – continuity versus decline – is monitored over the same period of time. Three profiles are thus defined and compared with one another: health stability (profile I); health deterioration with continuing activity (profile II); helath deterioration with activity decline (profile III). For three of the four cases analyzed (two constituents of well-being x two trajectories of frailty), the analyses show that profile II is associated with no significant decline in well-being whose level at the end of the trajectory is very close to that of profile I whereas profile III engenders a marked decline in well-being. These results emphasize that continuity in leisure activities moderates the negative effects on well-being of the onset and aggravation of frailty and they are on the whole consistent with the theoretical model of continuity.