Dying of Depression.

https://www.thecalmzone.net/2015/01/first-person-dying-of-depression-the-words-are-not-enough/

A great read. Yes, you can die from depression, especially left either untreated or treatment-resistant. Yes, it is like cancer, please stop spreading the stigma that it isn't or someone with depression "doesn't have it so bad." Come on, be compassionate.