For your perusal, the next installment in making the case against a suburban lifestyle comes from this insightful article in New York Magazine: Is Urban Loneliness a Myth?
I'm going to spoil the best line in the entire article right here, which occurs on page 5: "The presence of other human beings puts a natural limit on how freakily we can behave.". Well, it certainly hit the spot for me. Where do all those school shootings happen, and who perpetrates them? Freakishly antisocial kids in suburban schools in the middle of nowhere, or at universities in isolated locations.
The whole premise is how you live. Urbanites, whether single or married, have larger social circles, more social activity, and because of this are less likely to feel lonely, which affects physical health. Among other things, such as not driving everywhere and not sitting on your ass watching television every night.