As I set out to understand depression, and to interview people who had experienced it, I found that there were people who seemed on the surface to have what sounded like relatively mild depression who were nonetheless utterly disabled by it. And there were other people who had what sounded as they described it like terribly severe depression who nonetheless had good lives in the interstices between their depressive episodes. And I set out to find out what it is that causes some people to be more resilient than other people. What are the mechanisms that allow people to survive? And I went out and I interviewed person after person who was suffering with depression.
One of the first people I interviewed described depression as a slower way of being dead, and that was a good thing for me to hear early on because it reminded me that that slow way of being dead can lead to actual deadness, that this is a serious business. It’s the leading disability worldwide, and people die of it every day.
— Andrew Solomon: Depression, the secret we share