Chronic fatigue syndrome (CFS) refers to a clinical phenomenon of long-term general fatigue and weakness that cannot be relieved by bed rest. Chronic fatigue syndrome is also known as yuppie syndrome, chronic Burkitt lymphoma virus (EBV), chronic mononucleosis, etc. Chronic fatigue syndrome is a long-term severe fatigue without actual muscle weakness and no confirmed psychological or physical reasons. In the past, the medical community did not have enough knowledge of this symptom of fatigue and weakness, and often misdiagnosed it as neurasthenia, menopausal syndrome, endocrine disorders, neurosis, etc., delaying the treatment. The hidden nature of chronic fatigue is that you feel very tired after just a few nights of staying up. If the human body is often in this state of fatigue, the body's perception system will be less sensitive to fatigue signals. When you suffer from a certain disease, when the body reminds you through fatigue signals, it is often difficult to pay attention, so that the best time for treatment is missed.