In older children and adolescents, an additional indicator may be the use of drugs or alcohol. Moreover, depressed adolescents are at risk for further destructive behaviours, such as eating disorders and self-harm.
One of the most widely used instruments for measuring depression severity is the Beck Depression Inventory, a 21 question multiple choice survey.
It is hard for people who have not experienced clinical depression, either personally or by regular exposure to people suffering it, to understand its emotional impact and severity, interpreting it instead as being similar to "having the blues" or "feeling down". As the list of symptoms above indicates, clinical depression is a syndrome of interlocking symptoms which goes far beyond sad or painful feelings. A variety of biological indicators, including measurement of neurotransmitter levels, have shown that there are significant changes in brain chemistry and an overall reduction in brain activity.
One consequence of a lack of understanding of its nature is that depressed individuals are often criticized by themselves and others for not making an effort to help themselves. However, the very nature of depression alters the way people think and react to situations to the point where they may become so pessimistic that they can do little or nothing about their condition.
Because of this profound and often overwhelmingly negative outlook, it is imperative that the depressed individual seek professional help. Untreated depression is typically characterized by progressively worsening episodes separated by plateaus of temporary stability or remission. If left untreated it will generally resolve within six months to two years although occasionally depression becomes chronic and lasts for many years or indefinitely. In many cases (but not all) treatment can shorten the period of distress to a matter of weeks.
While depressed, the person may damage themselves socially (e.g. the break up of relationships), occupationally (e.g. loss of a job), financially and physically. Treatment of depression can significantly reduce the incidence of this damage, including reducing the risk of suicide which is otherwise a common and tragic outcome. For all of these reasons, treatment of clinical depression is seen by many as very useful and at times life saving.
Some people can experience anhedonia for long periods of time before they discover it is a mental illness. The inability to feel pleasure can advance negativity already present in a depressed person's mental state.
Lisa Angelettie, M.S.W., is a psychotherapist, author, and an online advice expert. She has been helping people make smarter life choices since 1998. Visit her for Advice & Counseling, or take a free Depression Screening today.
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Depression". You are free to copy & use this article under the terms of the license. *Please note that a courtesy copy of your publication would be appreciated.
