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A Bittersweet Social Emotion

Nostalgia mixes affection for a cherished past with the knowledge that the past cannot be recovered. That combination can feel wistful, but it may do more than draw attention backward. In “Nostalgia Keeps Friendships Alive,” researcher Kuan-Ju Huang describes evidence that nostalgia is associated with the motivation to maintain close relationships and may help protect those relationships as people age.

Nostalgic memories are often social. A song, family meal, childhood toy or familiar television show can evoke not only a time and place but also the people who shared it. Earlier research found that during COVID lockdowns, lonely people often chose music and other entertainment that stirred nostalgia. Huang and colleagues therefore asked whether the emotion merely provides temporary comfort or also encourages behavior that sustains a social network.

From Reminiscence to Relationship Maintenance

The researchers began with two U.S. surveys. One included 449 undergraduates at the University at Buffalo; the other included 396 adults recruited from a nationwide survey panel. Participants completed a questionnaire measuring “nostalgia proneness”—how often they felt nostalgic and how important those experiences were to them. They also counted people in three concentric social circles: indispensable friends and loved ones, other close contacts, and looser but still meaningful ties.

People who were more prone to nostalgia reported more members in their innermost friendship circle. They also expressed stronger motivation both to meet new people and to reinforce existing relationships, with the larger effect appearing in the desire to preserve established ties. The association remained after accounting for traits including extroversion, agreeableness and emotional stability.

Those surveys could not establish direction. A nostalgic disposition might encourage people to invest in relationships, but a large network and a long history with friends might simply provide more material for reminiscence. To examine how the variables changed over time, the researchers turned to data from 520 people in the Netherlands who were followed from 2013 through 2019.

The longitudinal pattern offered a stronger clue. Greater nostalgia proneness at an earlier point predicted a larger network of close ties later. The reverse relationship did not appear: having more close contacts did not predict a later rise in nostalgia. Participants low in nostalgia proneness tended to lose close ties over the seven-year period, whereas those high in nostalgia maintained a relatively stable number. The finding is consistent with nostalgia helping people resist the ordinary erosion of relationships caused by moves, parenthood and other life changes.

Suggestive, Not Causal

The evidence remains observational. All three studies depended on self-reported emotion, motivation and network size, and even a longitudinal association cannot rule out every unmeasured factor that might influence both nostalgia and friendship. The studies did not experimentally induce nostalgia and then observe whether participants actually called friends, resolved conflicts or invested more time in relationships. They therefore support a directional hypothesis rather than prove that reminiscing preserves social ties.

The results nevertheless sharpen the picture of nostalgia. It may function as an emotional signal that makes valued relationships feel both vivid and vulnerable. By recalling shared experiences and the impossibility of reliving them exactly, people may become more willing to spend attention and effort on the relationships that produced those memories.

Nostalgia, on this account, is neither simple escapism nor a guaranteed social remedy. It is a possible bridge between autobiographical memory and present action. Looking backward may sometimes help people recognize which connections matter enough to carry forward.