Science Daily: Childhood adversity increases risk for depression

"What's important about this study is that it identifies a group of people who are prone to have depression and inflammation at the same time.

That group of people experienced major stress in childhood, often related to poverty, having a parent with a severe illness, or lasting separation from family. As a result, these individuals may experience depressions that are especially difficult to treat."

Entire article here:  Childhood adversity increases risk for depression and chronic inflammation