These findings fit in with an overarching evolutionary theory on loneliness.
Loneliness is usually a difficult emotion to divulge. We want to project to others that we have a vibrant and fulfilling social life. Of course, we all get lonely sometimes, but some far more often than others. Usually, divulging that one is lonely elicits compassion, empathy, or even pity on the part of the listener. But perhaps they shouldn't feel so, according to one long-term study out of the University of Chicago. It finds that those who are chronically lonely are more likely to be self-centered. The findings of the study were published in the journal Personality and Psychology Bulletin.