I've had an interesting realization in the past few days. I am someone who literally needs something scientific/logical or at least concrete to focus on every day (not just my creative side), to keep from going insane. I was a science major my first few years at university, then switched to social science (psychology - but still using the scientific method), and creative writing.
I always thought I wanted to just write fiction, and just had to do my day job to survive. I resented the idea of returning to college at age 54 and still needing a day job, even though I am interested in the field. Now I realize I *need* it. For me, although creativity *can* be healing, it's not enough on its own.
I've read articles that say focusing on scientific or mathematical problems actually bypasses the emotion centre of the brain, so that it can be a way of escaping depression and overthinking. I suspect it turns off the Default Mode Network in the same way that meditation does.