There's bipolar disorder. Getting a depressive in a manic phase doesn't help him.
We need a science of happiness which is largely about finding the ideal jolts of fun to input in our brain.
How much of positive psychology have you actually read?
Positive psychology? The Seligman thing? Not at all. Is relevant?
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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