This is a very good article.
For most of my adult life I have battled depression from one extreme to the other. I have conquered it many times, with counseling for some of it, and often just on my own and without medication. Right now I am not doing too badly with it, but I know how to recognize it when it is getting bad. As I get older I gain a better understanding and acceptance of myself so I don't find that I am deeply depressed very often anymore. Knowing I am predisposed to the condition helps me to deal with it better as a whole.