When I feel that “feeling”, I just decide not to be a participant. I can’t stop it from happening but I can choose to not help it. I find that being thankful helps take my mind off it.
Too many depressed people are self-centered. All they ever talk about is themselves and their problems. I don’t think that is an accident.
Here's something that sounds silly, but I would hope people who get "down" try it (it will not work for major depression). Next time the blues or whatever come, force a smile on your face and hold it for a minute or so (don't do this in public--LOL!). You'll feel better in 10 minutes or so...