What is Veeky Forums's opinion on mental conditions like chronic depression and anxiety...

Do you mean in terms of nutrition and things like that? Honestly, I have incredibly limited understanding of biology/physiology (literally high-school tier, even though I have an MSc and am going for PhD), so I can't say for sure. That said, I'm pretty sure there's studies to show that changing to a healthier diet reduces depressive symptoms. Whether that's to do with some direct effect on brain chemistry, some indirect effect whereby successful completion of an important goal engenders feelings of self-efficacy, or some combination of the two, I don't know for sure.

not the guy, but yes, that's a good guess

Obesity is linked with increased global inflammation, and depression is linked with brain inflammation. Not to say that obesity causes depression, but it could amplify its effects, at least by this causal chain

>You can't really get rid of some thoughts.

What thoughts can't you get rid of? The point of breaking the negative cycle is acknowledging the bs of the negative thought and reducing the rate of negative thoughts through the analysis.

>dichotomy
feelsbadman, cant feel good, only bad or awesome