Neurasthenia and cerebral blood supply deficiency are old people’s terminology, but they are not the same thing, there are commonalities but there are also differences, as follows: 1, the differences: cerebral blood supply deficiency it and neurasthenia have obvious differences, some of the brain will be due to cerebral ischemia and hypoxia symptoms, there will be different degrees of dysfunction, some of which manifested as dizziness, some accompanied by headaches, memory loss. If the ischemia and hypoxia is severe, patients will have unclear speech, language dysfunction, but also accompanied by limb numbness, weakness and other severe cerebral ischemia; 2, the common denominator: all belong to the chronic disease, will lead to memory loss, combined with neurological decline, and in some cases, neurasthenia. From the patient’s body abnormal performance can generally distinguish between the two conditions. The main manifestation of neurasthenia is mental deficiency, fatigue, often have a slow brain response, lack of concentration, memory loss. And neurasthenia people are especially prone to nerve sensitivity, mood swings, especially easy to provoke, anger, more serious may develop into depression.