http://goo.gl/sfVzrF
The lonely brain is different from the non-lonely brain, says John Cacioppo, director of the Center for Cognitive and Social Neuroscience at the University of Chicago and one of the nation’s leading experts on the neurobiology of loneliness. In people like me, who for various reasons are primed to define ourselves as lonely — more on those reasons later — the brain switches easily into self-preservation mode when we’re feeling loneliest, quick to see social danger even when it isn’t there.