Chemical In Brain That Causes Depression
Causes
The causes of depression are not fully known. Most likely a combination of genetic, biologic, and environmental factors play a role.
Genetic Factors
Because depression often runs in families, it appears that a genetic component is involved. Studies have found that close relatives of patients with depression are two to six times more likely to develop the condition than individuals without a family history.
Biologic Factors
The basic biologic causes of depression are strongly linked to...
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