For quite some time researchers have known that depression and inflammation seem to be linked. What was less clear was whether inflammation throughout the body could lead to depression or vice versa. Now, a new study published in Biological Psychiatry investigating the bi-directional longitudinal association between depression and the inflammation marker C-reactive protein (CRP) provides evidence that depression, in this case in early childhood, results in increased levels of CRP later in life and not the other way around.
