This aside is more speculative and significantly based on personal experience doing 2 green-field products for one employer, founding 3 startups, and doing some internal research projects at Google...
But what I've noticed is that aside from frequently co-occurring with creative work, depression and anxiety are frequently the trigger to finding a non-obvious solution and making forward progress. In other words, they're not just mental disorders; they're feelings that can give you useful signal about how to proceed next, if you listen very carefully to them. Anxiety is basically your emotional systems being hyper-engaged, such that you get an emotional response from nearly everything. Depression feels like the opposite, a deadening of your emotional senses, but oftentimes escaping the depression actually points the way to escaping your real-world problem. If you can imagine a future where you are not depressed (which if you've suffered clinical depression is actually quite difficult), very likely that's a strong signal that that's what you should actually be doing, no matter how weird or unreasonable it sounds.
There's some evidence for this hypothesis here (2009):
You could also think of the anxiety related to creative work in relation to System 1 of the brain in Daniel Kahneman's Thinking Fast and Slow. In highly ambiguous circumstances (which basically all creative work is), it makes sense for your brain to become hypersensitive to all available stimuli, and to quickly pattern-match on a course of action without too much rational consideration. We experience that sort of emotional overload as anxiety.
But what I've noticed is that aside from frequently co-occurring with creative work, depression and anxiety are frequently the trigger to finding a non-obvious solution and making forward progress. In other words, they're not just mental disorders; they're feelings that can give you useful signal about how to proceed next, if you listen very carefully to them. Anxiety is basically your emotional systems being hyper-engaged, such that you get an emotional response from nearly everything. Depression feels like the opposite, a deadening of your emotional senses, but oftentimes escaping the depression actually points the way to escaping your real-world problem. If you can imagine a future where you are not depressed (which if you've suffered clinical depression is actually quite difficult), very likely that's a strong signal that that's what you should actually be doing, no matter how weird or unreasonable it sounds.
There's some evidence for this hypothesis here (2009):
https://www.scientificamerican.com/article/depressions-evolu...
You could also think of the anxiety related to creative work in relation to System 1 of the brain in Daniel Kahneman's Thinking Fast and Slow. In highly ambiguous circumstances (which basically all creative work is), it makes sense for your brain to become hypersensitive to all available stimuli, and to quickly pattern-match on a course of action without too much rational consideration. We experience that sort of emotional overload as anxiety.