John T. Cacioppo, PhD, Tiffany & Margaret Blake Distinguished Service Professor, department of psychology, director, Center for Cognitive and Social Neuroscience, University of Chicago. He is the coauthor of Loneliness: Human Nature and the Need for Social Connection, the founder of the field of social neuroscience and president of the Society for Social Neuroscience.
If you have a friend who’s lonely, it’s easy to understand how isolation can raise the person’s risk for mental…
