possible causes of depression
Causes. There is no single cause of depression. You can develop it for different reasons and it has many different triggers. For some, an upsetting or stressful life event â such as bereavement, divorce, illness, redundancy and job or money worries â can be the cause.
If you're depressed, it might not be easy to figure out why. In most cases, depression doesn't have a single cause. Instead, it results from a mix of things -- your genes, events in your past, your current circumstances, and other risk factors. Biology.