Characteristic chemical signature for chronic fatigue syndrome identified

Chronic fatigue syndrome (CFS) is a mysterious and maddening condition, with no cure or known cause. But researchers, using a variety of techniques to identify and assess targeted metabolites in blood plasma, have identified a characteristic chemical signature for the debilitating ailment and an unexpected underlying biology: It is similar to the state of dauer, and other hypometabolic syndromes like caloric restriction, diapause and hibernation.