| Sumario: | Objectives Digital engagement is increasingly recognized as a social determinant of health that influences well-being in aging populations. However, disparities in digital access and engagement contribute to social isolation, particularly among older adults who may experience technological barriers. While digital interactions have the potential to mitigate loneliness, their effectiveness varies widely, indicating systematic differences in how engagement corresponds to loneliness across individuals. Here, we introduce the concept of digital disconnection —the mismatch between the frequency of digital social contact and experienced loneliness—and examine whether purpose in life (PIL) mitigates this phenomenon in later life. Methods Using cross-sectional surveys and daily diary data from two independent cohorts in the Midlife in the United States (MIDUS III: N = 2,864; MIDUS Refresher: N = 2,522) study, we quantified digital disconnection as individual deviations in loneliness from predicted levels based on patterns of digital contact. Results Purpose in life was inversely associated with digital disconnection in both surveys (B = − 0.51 and B = − 0.60, p < .001) and micro-longitudinal assessments (B = − 0.38 and B = − 0.37, p <.001), indicating that older adults with higher PIL showed lower residual loneliness after accounting for their level of digital engagement. Discussion These findings refine theoretical models of digital social processes by identifying purpose as a modifiable psychological resource that may help older adults navigate the challenges of technology-mediated social interactions.
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