Unless we're independently wealthy, most of us spend a large part of our waking hours at work. Our "second homes" can contribute positively or negatively to our well-being. If you're suffering from depression, it's worth asking yourself if your job could be a factor, or even the sole cause.

Perhaps your job isn't a good fit with your personality. I found over the years that, probably because of my Attention Deficit Hyperactivity Disorder, I get bored doing jobs that keep me any less than...