A study of 15 population-based cohorts, totalling 56,351 individuals, suggests that there is a correlation between inflammation as measured by elevated C-reactive protein (CRP) and interleukin-6 (IL-6) and a specific sub-group of symptoms of depression. The inflammation cluster consisted of four physical symptoms: changes in appetite, felt everything was an effort, loss of energy, sleep problems; and one cognitive symptom: little …
