And we know that you can be lonely in a crowd and you can be lonely in a marriage, so the second big lesson that we learned is that it's not just the number of friends you have, and it's not whether or not you're in a committed relationship, but it's the quality of your close relationships that matters.
Vi ved at man kan være ensom i en flok og man kan være ensom i et ægteskab, så den anden klare  erfaring er, at det ikke bare handler  om antal venner, eller hvorvidt du har et fast forhold, det er kvaliteten af de nære  relationer der betyder noget.