Depression as the word imply, simply mean a state of depress mind, a trouble state of mind. I can say that depression has no universal definition because of various factors that may be associated with signs and symptoms, diagnosis, cultural explanation, laws of the state or country and other related factors.
For instance, if I should define depression as mental disorder, I may be saying the individual is psychotic or insane. It is not a simple term to define, except one defines it from the point of view of his understanding of the ailment otherwise there is no specific or universal agreed definition of depression.
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