The number of people you know does not necessarily determine your experience of connectedness or loneliness. Neither do your living arrangements or your marital status. You can be lonely in a crowd, and you can be lonely in a marriage. In fact, we know that high-conflict marriages with little affection can be worse for health than getting divorced. Instead, it is the quality of your relationships that matters. Simply put, living in the midst of warm relationships is protective of both mind and body.