What are the early symptoms of Alzheimer's disease?

Alzheimer's Harmo's disease or Alzheimer's Harmo's disease is a degenerative disease of the central nervous system, which is characterized by progressive cognitive dysfunction and behavioral disorder. Clinically, it is often manifested as memory disorder, apraxia, agnosia, aphasia and impairment of abstract thinking and calculation ability, which may be accompanied by changes in personality and behavior in the later stage. Alzheimer's disease is the most common Alzheimer's disease, accounting for about 50%-70% of all Alzheimer's diseases. In the early stage of Alzheimer's disease, the main clinical manifestations are slight memory loss and decreased ability to learn and preserve new knowledge. Attention, executive ability and speech ability can also decrease slightly. The disease is a neurodegenerative disease, the course of which is progressive and cannot be completely cured. Drugs such as donepezil hydrochloride and huperzine A can be used to delay the development of symptoms.