From Newswise, posted Nov. 10, 2005:
Heredity May Be the Reason Some People Feel Lonely
Newswise — Heredity helps determine why some adults are persistently lonely, research co-authored by psychologists at the University of Chicago shows.
Working with colleagues in The Netherlands, the scholars found about 50 percent of identical twins and 25 percent of fraternal twins shared similar characteristics of loneliness. Research on twins is a powerful method to study the impact of heredity because twins raised together share many of the same environmental influences as well as similar genes, thus making it easier to determine the role of genetics in development.
Psychologists had previously thought loneliness was primarily caused by shyness, poor social skills, or inability to form strong attachments with other people.
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