Depression may be described as feeling sad, blue, unhappy, miserable, or down in the dumps. Most of us feel this way at one time or another for short periods.
Clinical depression is a mood disorder in which feelings of sadness, loss, anger, or frustration interfere with everyday life for an extended period of time.
Symptoms of depression include:
Low self-esteem is common with depression. So are sudden bursts of anger and lack of pleasure from activities that normally make you happy, including sex.
Depressed children may not have the classic symptoms of adult depression. Watch especially for changes in school performance, sleep, and behavior. If you wonder whether your child might be depressed, it's worth bringing to a doctor's attention.