Some of our daily life revolves around compromise. There's the cost-benefit issue with medication for example, or the decision about whether to pay a little more for something, or those times we agree to do things in order to please someone else. I suspect few people have considered the role of depression as a trade-off, but it's a suggestion put forward by research psychiatrists who wonder whether depression is an evolutionary byproduct of our immune systems.
The purpose of depression is...
