These changes are important because both stressors and depression can sensitize the
inflammatory response in such a way that they produce heightened responsiveness to stressful events as well as antigen challenge.25, 27,28,60 Furthermore, more frequent or persistent stress - related changes in plasma levels of these
key cytokines have broad implications for health; elevated levels of proinflammatory
cytokines have been linked to a variety of age - related disease, including cardiovascular disease, osteoporosis, arthritis, type 2 diabetes mellitus, certain cancers, and frailty and functional decline.29 Moreover,
inflammatory activation can enhance development of depressive symptoms.30, 31 Thus, relationships characterized by hostility, repeated conflicts, and heightened IL - 6 levels could have negative consequences for both physical and mental health.