Practicing "social fitness"

Tend your relationships like physical fitness — regularly, not only when something breaks.

Why it works

Relationships, like muscles, atrophy from neglect; the study’s authors use "social fitness" to capture that connection needs ongoing maintenance, not just crisis repair. Regular, low-stakes contact keeps ties strong so they are actually there — as a buffer against stress and a source of wellbeing — when life is hard.

How to do it

1. Inventory your important relationships and notice which have gone quiet.
2. Schedule small, regular contact with the ones that matter, not just big occasions.
3. Treat reaching out as ongoing maintenance, not something reserved for problems.

Evidence

The Harvard Study found relationship quality in midlife predicted later health and life satisfaction; "social fitness" is the authors’ framing of acting on that. The finding is robust longitudinal data, but observational. (observational)

Observational: relationships and wellbeing reinforce each other and share causes, so this is strong association, not proven one-way cause.

Sources

• Waldinger & Schulz (2023), "The Good Life: Lessons from the World’s Longest Scientific Study of Happiness"

Common mistake

Only reaching out when you need something or when a relationship is already in trouble, by which point the connection has thinned.