What is alzheimers'?

Answer 1

Alzheimer's disease is a disorder of the brain, named after German physician Alois Alzheimer, who first described it in 1906. Scientists have learned a great deal about Alzheimer's disease in a century since Dr. Alzheimer first drew attention to it.

Today we know that Alzheimer's is a progressive and fatal brain disease. Alzheimer's destroys brain cells, causing problems with memory, thinking and behavior severe enough to affect work, lifelong hobbies or social life. Alzheimer's gets worse over time, and it is fatal. Today it is the seventh-leading cause of death in the United States.

Another user said:

Alzheimer's is a type of dementia that presents itself as memory impairment and difficulty speaking, doing common tasks that require motor skills, inability to remember common things, and doing tasks that require planning.

Answer 2

Alzheimer's is the most commonly diagnosed senile dementia, marked by the progressive deterioration of cortical tissue associated with a variety of cognitive functions (e.g., memory).