The Clinical Guide of Sub-health Chinese Medicine issued by China Society of Traditional Chinese Medicine points out that sub-health refers to a state between health and disease. People in sub-health state can't reach the health standard, which is characterized by the decline of vitality, function and adaptability in a certain period of time, but it doesn't meet the clinical or subclinical diagnostic criteria of modern medicine.
Some foreign scholars think that sub-health and chronic fatigue syndrome are the same thing, and they are both studies of a group of physiological and psychological symptoms characterized by chronic fatigue, but some scholars hold different opinions.
The United States is the first country to study chronic fatigue syndrome (CFS). 1988, CDC officially named "chronic fatigue syndrome" and defined it. ? [1] 1994, the international research group on chronic fatigue syndrome (led by the United States and composed of researchers from Australia, Britain and other countries) revised the diagnostic criteria of chronic fatigue syndrome.
Definition of chronic fatigue syndrome: clinical evaluation, unexplained, persistent or recurrent chronic fatigue for 6 months or more. Fatigue is new or has a clear beginning (not lifelong); Not the result of continuous efforts; Can not be significantly relieved after rest; As a result, the ability to work, study, socialize or engage in personal activities is obviously lower than before.
Diagnostic criteria:
(1) According to the clinical evaluation, there is inexplicable, persistent or recurrent chronic fatigue, which is new or has a definite onset time, is not congenital, and is not obvious after rest. The professional ability, educational ability, social ability and personal life of patients are substantially reduced compared with those before illness;
(2) At least four of the following symptoms appear at the same time, before the non-fatigue symptoms, and the symptoms persist or recur for at least 6 months: (1) Short-term memory or attention is obviously decreased; (2) sore throat; (3) Enlargement of lymph nodes in neck or armpit; (4) muscle pain; (5) Multiple joint pains, but not accompanied by redness and swelling; (6) Headache, but the attack type, mode and severity are different from before; (7) unable to recover energy after sleep; (8) Discomfort lasts more than 24 hours after exercise. ? [2-4]?