Saturday, January 19, 2013

Loneliness, like chronic stress, taxes the immune system

http://www.eurekalert.org/pub_releases/2013-01/osu-llc011713.php

Public release date: 19-Jan-2013
Contact: Lisa Jaremka
Ohio State University

COLUMBUS, Ohio – New research links loneliness to a number of dysfunctional immune responses, suggesting that being lonely has the potential to harm overall health.

Researchers found that people who were more lonely showed signs of elevated latent herpes virus reactivation and produced more inflammation-related proteins in response to acute stress than did people who felt more socially connected.

These proteins signal the presence of inflammation, and chronic inflammation is linked to numerous conditions, including coronary heart disease, Type 2 diabetes, arthritis and Alzheimer's disease, as well as the frailty and functional decline that can accompany aging.

Reactivation of a latent herpes virus is known to be associated with stress, suggesting that loneliness functions as a chronic stressor that triggers a poorly controlled immune response.

"It is clear from previous research that poor-quality relationships are linked to a number of health problems, including premature mortality and all sorts of other very serious health conditions. And people who are lonely clearly feel like they are in poor-quality relationships," said Lisa Jaremka, a postdoctoral fellow at the Institute for Behavioral Medicine Research at Ohio State University and lead author of the research.

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