Brain atrophy is not a disease, but a symptom.
CEREBRAL ATROPHY
"It is a phenomenon of atrophy of brain tissue caused by various reasons."
Early symptom
Memory and thinking ability decreased, mainly near memory impairment.
Mid stage
The patient's memory decreased significantly, especially in recent events. At the same time, the patient also showed distant events forgetting, and began to have obvious cognitive dysfunction, mental confusion, perception difficulties, and decline in comprehensive ability.
Advanced symptom