How chronic stress and depression harm the heart

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Very little is known about mechanisms whereby depression harms the heart. This is especially disturbing as recent evidence indicates that while antidepressants alleviate a depressed persons negative mood, they do not eliminate danger to the heart. We will use an animal model to determine: How depression affects the electrical stability of the heart; The identity of the brain mechanisms that are involved; and which drugs can be used to protect the heart fro the harmful effects of depression.