Catecholamine Hypothesis

The catecholamine hypothesis of affective disorders proposes that depression is linked with a decrease of catecholamines, a group of hormones such as norepinephrine, epinephrine, and dopamine. This type of release occurs in response to physical and emotional stress. It is backed up by discoveries such as the ability of antidepressants to increase catecholamines and neuronal growth.

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