I suspect that I am suffering from depression.  What are the symptoms, and what are some of the treatments for depression?
D000928:Antidepressive Agents / Q000627:therapeutic use; D015928:Cognitive Behavioral Therapy; D003863:Depression / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy; D004032:Diet; D015444:Exercise; D006801:Humans; D008019:Life Style; D009752:Nutritional Status; D013315:Stress, Psychological
D000928:Antidepressive Agents