Slow thinking, slow reaction and memory loss should be found to cause the above symptoms: First, middle-aged and elderly patients can be seen in the brain lesions, clinically common in ischemic cerebrovascular disease, can be seen in the temporal lobe, hippocampus, corpus callosum and other parts of the infarction, the patient appears slow reaction, memory loss, etc., the acute treatment can be given to patients anti-platelet aggregation, blood circulation treatment, commonly used drugs are aspirin, clopidogrel and ginkgo biloba preparations, Clopidogrel and Ginkgo biloba preparations can be given to the patient for thrombolysis if necessary, or to improve collateral circulation with intravenous butylphthalein injection, etc. Second, for slow thinking, slow reaction, memory loss, elderly patients should be considered to be caused by dementia, give the patient oral acetylcholinesterase inhibitors, lithophanol or donepezil hydrochloride and other drugs.