Not “The More The Merrier”: Diminishing Returns to Daily Face-To-Face Social Interaction Frequency for Well-Being in Older Age

ObjectivesWhile being socially active is beneficial for well-being in older age, it is unclear whether effects of social interactions on well-being indicate “the more the merrier” or if they have limits as individuals socialize more or less across different days. This study addressed diminishing returns to social interaction frequency for well-being.MethodWe examined data from an event-contingent experience sampling study from 116 Swiss older adults (65 to 94 years old) over 21 days. Participants reported face-to-face social interactions once they occurred and daily well-being (i.e., positive and negative affect, loneliness) in the evenings.ResultsOn average, participants had 2.09 face-to-face social interactions per day. Linear and quadratic effects from multilevel models conjointly indicated that a higher number of daily social interactions was associated with higher daily positive affect and lower daily negative affect and loneliness, but that well-being reached its peak at 2–3 times above participants’ typical daily interaction frequency. Once these numbers were surpassed, the benefit of additional social interactions diminished. Additionally, participants who typically had fewer social interactions, were unmarried, lived alone, and had more health conditions showed stronger associations between daily social interaction frequency and well-being.DiscussionOur findings suggest the benefits of social interactions on well-being exhibit diminishing returns. Social interactions may play a bigger role in older adults with less satiation for desire to belong and a limited future time perspective. We discuss these findings in terms of the belongingness hypothesis and the socioemotional selectivity theory.