Thriving through relationships.

The specific pathways through which close relationships promote optimal well-being are not well understood. We describe a model (building on attachment theory's notion of safe haven and secure base support) that explains how close relationships promote thriving. This model defines thriving, identifies distinct contexts through which individuals may thrive (life adversity and life opportunities for growth), describes two distinct social support functions in close relationships that promote thriving (source of strength support and relational catalyst support), and identifies mediators through which relational support leads to long-term thriving.