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Alzheimer's disease

Alzheimer's disease (AD), also known as just Alzheimer's, is a chronic neurodegenerative disease that usually starts slowly and gets worse over time.It is the cause of 60% to 70% of cases of dementia.The most common early symptom is difficulty in remembering recent events (short-term memory loss).As the disease advances, symptoms can include problems with language, disorientation (including easily getting lost), mood swings, loss of motivation, not managing self care, and behavioural issues.As a person's condition declines, they often withdraw from family and society.Gradually, bodily functions are lost, ultimately leading to death.Although the speed of progression can vary, the average life expectancy following diagnosis is three to nine years.