First of all, I do have first- and second-hand experience of this, so I&#x27;m not talking entirely out of my ass.<p>Also, there are actually a lot of people who deny any psychological involvement with depression, and you&#x27;ll see this a lot on forums (including HN). I&#x27;m not going to go into more detail, as it will likely just start another flame war, suffice to say it is definitely an issue.<p>I&#x27;m well aware of the difficulty in doing anything about depression, and it wasn&#x27;t backpeddling. I was just making the point that it is possible to improve depression through making changes. I wasn&#x27;t saying that it&#x27;s people&#x27;s own fault, or they just need to pull themselves together, or anything like that, which seems to be what people somehow implied from my comments.