No, I'm talking about my brain. Many of us use the idea "good mood by force of will" and a lot has been said by people way smarter than I about the effect of attitude on bodily and mental health. Of late I've been using a particular trick for my own mood and it's kind of working, so here it is:
When people ask how I'm doing, I say:
"Mostly OK. I have more things I want to do than I have time to do them."
Saying I'm mostly OK is true. It helps me keep from focusing on the things that are negative; on balance there are also a lot of positive things. The key is that I'm no longer lamenting all the things I have to do. I still have all those things, but I also have lots of things I do instead of those things. Books I read, games I play, movies I watch. Even if I did nothing but those (where's that winning powerball ticket?) I'd still have more things I wanted to do than time to do them.
It seems such a trivial trick to turn a simple phrase and yet it's having a significant effect on my better-mood-by-force-of-something.