Alzheimer's disease (AD) is a degenerative disease of the central nervous system that occurs frequently in the elderly. Patients with Alzheimer's disease will experience symptoms such as memory loss and cognitive decline, which will affect normal life over time. Therefore, we should detect and treat Alzheimer's disease early, which requires an understanding of the diagnostic criteria and early intervention methods for the five different types of Alzheimer's disease.

In modern medicine, neuroimaging, neuropsychological tests, biomarker detection, and genetic testing can be used to diagnose Alzheimer's disease [14] . Neuropsychological tests can be performed through daily behavioral performance and mental state assessment methods, and then provide a certain reference for the diagnosis of Alzheimer's disease. Biomarker detection is mainly to detect body indicators such as blood content and cerebrospinal fluid content. Through biomarker detection methods, some accompanying diseases or potential pathogenic factors can be found