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How is biology related to depression?

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Researchers have noted differences in the brains of people who have a clinical depression compared with those who don't. For example, the hippocampus, a small part of the brain that's important for storing memories, seems to be smaller in some people with a history of depression than in those who've never been depressed.

From: Causes of Depression WebMD Medical Reference

SOURCES:

National Institute of Mental Health: "Causes of Depression" and "What is Depression?"

SAMSHA's National Mental Health Information Center: "Mood Disorders."

American Psychiatric Association. , American Psychiatric Pub, 2000. Diagnostic and Statistical Manual of Mental Disorders: DSM-IV-TR

Fieve, R. Rodale Books, 2006. Bipolar II,

Reviewed by Smitha Bhandari on March 18, 2019

SOURCES:

National Institute of Mental Health: "Causes of Depression" and "What is Depression?"

SAMSHA's National Mental Health Information Center: "Mood Disorders."

American Psychiatric Association. , American Psychiatric Pub, 2000. Diagnostic and Statistical Manual of Mental Disorders: DSM-IV-TR

Fieve, R. Rodale Books, 2006. Bipolar II,

Reviewed by Smitha Bhandari on March 18, 2019

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How is genetics linked to the risk of depression?

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