Amnesia
Amnesia is loss of memory that is usually temporary but can sometimes be permanent. Learn more about its causes and ways to live with amnesia.
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Agnosia
This is a rare condition caused by damage to parts of the brain. Symptoms include difficulty recognising objects, people, sounds or smells.
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Dissociative identity disorder
Dissociative identity disorder, previously known as multiple personality disorder, causes people to feel as though they have multiple distinct personalities.
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Worried about your memory?
You might be worried that your memory isn’t what it used to be. Learn more about memory loss, what causes it and when you should see a doctor.
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