Pulse of Inflammation. HRV and the cholinergic pathway

Pulse of Inflammation. Heart Rate Variability, the cholinergic pathway, and Implications for therapy

This paper is not new, but I was unaware of it before.  Tracey outlines some of the correlations between HRV and cytokine levels.  He makes the case that some diseases that are characterized by elevated cytokines, such as rheumatoid arthritis, may have vagal depression as an etiological factor.