Assaults on our self-esteem trigger a form of pain signal that alerts us to the fact that damage is occurring to the opinions that others hold of us.
The Man Who Destroyed America’s Ego
Matter
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Shame? Social Stress?
Reminds me of Robert Sapolsky’s work on the effects of hierarchy and social reward in primates: http://www.openculture.com/2012/08/do_yourself_a_favor_and_watch_istress_portrait_of_a_killeri_with_stanford_biologist_robert_sapolsky.html