Relationship between mood disorders and coronary artery disease: possible role of the immune system and infection

Experiencing and regulating sadness: physiological and cognitive effects

No prior study has examined the two most prominent response-focused regulation strategies (suppression and exaggeration) using a within-subjects design. Utilizing this design allows for a direct comparison of physiological patterns and cognitive impairment associated with such efforts. One hundred and nine participants were asked to view a series of three films, each preceded by a 10-second instructional slide which indicated the regulation strategy they were to perform (natural-watch, exaggerate, or suppress). Exaggeration was associated with increased sympathetic activation as indicated by an increase in galvanic skin conductance level (GSL) and shortened pre-ejection period (PEP). Suppression, much like the natural-watch condition, was associated with greater sympathetic withdrawal (i.e., decreased GSL, longer PEP). Both suppression and exaggeration led to reduced memory for the emotional movie, with exaggeration causing more impairment than suppression. Results suggest that exaggeration and suppression not only have very different behavioral manifestations, but physiological outcomes as well when utilized during a sad context.

Effects of heavy alcohol consumption on the cardiovascular system may be mediated in part by the influence of alcohol-induced depression on the immune system

The harmful effects of heavy alcohol use are well-documented and wide-ranging. Heavy drinking may cause or exacerbate cardiovascular disorders. The author suggests that effects of heavy alcohol consumption on the cardiovascular system may be mediated in part by the influence of alcohol-induced depression on the immune system. This hypothesis is based on the following data: (1) alcohol misuse may cause or exacerbate depression; (2) depressive disorders are associated with increased incidence, morbidity, and mortality of cardiovascular disorders; (3) the immune system may mediate effects of depressive disorders on the cardiovascular system. Further studies are needed to clarify the etiopathogenesis of alcohol-related disorders and develop new treatment modalities.