Can stress cause depression and why?
Seligman's theory of depression called 'learned helplessness' states that depression is a result of a person's perception that their attempts to escape painful or negative situations make no difference. As a consequence, they learn to become helpless and passive. They will endure aversive stimuli or environments even when escape is possible. So, yeah! long-term stress can result in depression.
It can. Stress is the basis of almost every psychological disorder. Uncontrolled stress and losing power over controlling and releasing it can definitely lead to the feeling of hopelessness, knowing that depression is exactly that, feeling that we are not in control of our life, feeling hopeless.
Here's what I found on the internet:
A recent literature review proposed that prolonged stress and pathological anxiety are responsible for causing structural degeneration in the brain and reduced functioning of hippocampus and the prefrontal cortex which in return increase the risk of development of disorders like depression and anxiety