bdhkhsfgk wrote:
Depression is just a mood, ...
Which is why it's a mood disorder. When it interferes with one's life to a marked amount (social, vocation and academia), that's when it's classed as a disorder.
Depression, or better, overwhelming and disabling sadness for no cognitive reason, is just as real as any ASD.
The word "depression" gets thrown around a lot, and it's often misused. The same thing will probably happen to "autism" soon enough to describe normal asocial behaviour, just as "depression" is used to erroneously describe typical sadness from life events. The same thing happened with OCD too.