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Electrocardiogram Can Distinguish MDD From Bipolar Disorder

News | December 19, 2017

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An electrocardiogram (ECG) lasting 120 seconds can distinguish whether a person with depression symptoms has unipolar major depressive disorder (MDD) or bipolar disorder. The ECG detects heart rate variability due to vagal tone; the variability is produced when the parasympathetic nerve fibers carried in the vagus nerve control the heart rate. People with bipolar disorder…

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