the fatigue syndrome or chronic fatigue (CFS), now also referred to by associating the acronymME/CFS (myalgicencephalomyelitis/chronic fatiguesyndrome), is a rather complex condition that manifests as a condition of intense fatigue that can persist for many months, although it is not a condition that can be ascribed to a main clinical situation.
The disorder affects all of the patient’s activities and does not abate with adequate rest.