What are the primary symptoms of Alzheimer's disease?
Alzheimer's disease
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Alzheimer's disease (AD), also referred to simply as Alzheimer's, is a chronic neurodegenerative disease that usually starts slowly and worsens over time.[1][2] It is the cause of 60–70% of cases of dementia.[1][2] The most common early symptom is difficulty in remembering recent events (short-term memory loss).[1] 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.[1][2] As a person's condition declines, they often withdraw from family and society.[1] Gradually, bodily functions are lost, ultimately leading to death.[10] Although the speed of progression can vary, the typical life expectancy following diagnosis is three to nine years.[7][11]