I disagree. Your mood is possibly the most subjective experience you can have and it is heavily affected by your own perceptions of what it should be. Cognitive

I disagree. Your mood is possibly the most subjective experience you can have and it is heavily affected by your own perceptions of what it should be. Cognitive Behavioral Therapy for people suffering from all sorts of psychological maladies is significantly effective because we are so able to affect our own perception of reality. Therefore, they really, really need to do a rigorous experiment before we can derive anything meaningful.