"Depression" is a pretty broad topic, but if I had to categorize what "depression" means to me, in a general sense, I would say that it's the illogical (ie: for no real reason) feelings of sadness, ...

I regret to say there is no simple or easy answer to this question. Many people use the word ‘depression’ to refer to normal disappointment or sadness, and there can be little doubt that the concept ...