What's another name for Alzheimer's disease? I can't think of it at the moment! Alzheimer's disease

Alzheimer's disease (AD) is a progressive and fatal neurodegenerative disease. Its clinical manifestations are the deterioration of cognitive and memory functions, the progressive decline of daily living ability, and various neuropsychiatric symptoms and behavioral disorders. According to the survey released by China Alzheimer's Association on 20 1 1, there are about 36.5 million people suffering from dementia in the world, and one person suffers from dementia every seven seconds, with an average life span of only 5.9 years, which is one of the "four killers" threatening the health of the elderly.