See:
https://ebm.bmj.com/content/ebmed/ea...11238.full.pdf

Anyone who listens to other people has known this for a long time, but psychiatrists, like a lot of doctors, don't necessarily listen very well.

Another paper came out recently which stated that some people have good reason for being in a major depression, i.e. it's not necessarily an illness.

You would think they would have figured out a long time ago that there's a difference between someone justifiably depressed because of a traumatic life event and someone who becomes severely depressed for no apparent reason. No, they had to do a study about it.