Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
Symptoms associated with chronic inflammatory diseases such as fatigue, depression and muscle loss are often overlooked during treatment. This Perspectives article provides a framework for understanding many of these symptoms that is based on the concepts of evolutionary medicine, energy regulation and neuroendocrine–immune crosstalk.
