A major cause of depression is the feeling of loss of control of ones life, and lack of security. For example, you are bullied/harassed at work, or someone take

A major cause of depression is the feeling of loss of control of ones life, and lack of security. For example, you are bullied/harassed at work, or someone takes credit for your work, but this is compounded by not being able to report it (because of conflict of interest in HR, or because it would not help) and not being able to quit, because of financial difficulties, or because the company will give you bad recommendations then. Or your family members put you under pressure to follow a certain life path, and you cannot escape. Then the observed correlation would be the reverse causation of the article.