[jpernst]

I'm glad somebody mentioned this book, I was just about to reply with it myself. I'd summarize the core premise as anxiety and depression, while some people are more naturally predisposed to them, aren't things that "just happen", and it's not your brain suddenly misfiring for no reason.

Our culture has become increasingly individualized and isolated, in contrast to millions of years of evolutionary selection for tribal behavior in the great apes. Anxiety is a natural response to being separated from your tribe, since it increases your risk exposure to many things. It's not enough to just have colleagues or acquaintances, but people who actually know and care about you and will notice if you're missing or if something is wrong.

A fantastic book. I borrowed it from the library, but I think I'm going to buy my own copy.