The evolved nest in childhood: relation to adult well-being and social capital across cultures

Evolved nests are species-specific developmental systems that support psychological, social, and biological needs. The human evolved nest includes practices such as responsive care, self-directed play, and extensive affectionate touch. Previous studies have linked early life experience of these practices with child and adult well-being. Here we investigated whether childhood evolved nest experiences are related to adult well-being and social capital across cultures. We collected data in three countries ( n  = 1,397 across Japan, UK, USA) and found that recalled evolved nest experiences were positively associated with three dimensions of well-being and social capital: personal well-being, social relationships, and self-reported (but not incentivised) prosociality. These associations were consistent both within and across cultures after controlling for income and education. A factor analysis identified positive and negative experiences as two latent factors within the evolved framework that were independently related to adult well-being and social capital. Our findings indicate that childhood experience of the evolved nest may have long-term individual and societal well-being benefits across cultures.