Nostalgia, a sentimental longing for one's past, is an emotion that arises from self-relevant and social memories. Nostalgia functions, in part, to foster self-continuity, that is, a sense of connection between one's past and one's present. This article examined, in 6 experiments, how nostalgia fosters self-continuity and the implications of that process for well-being. Nostalgia fosters self-c...