Dementia describes a collection of symptoms that are caused by disorders affecting the brain. It is not one specific disease. Dementia affects thinking, behaviour and the ability to perform everyday tasks. Brain function is affected enough to interfere with the person’s normal social or working life.
Most people with dementia are older, but it is important to remember that not all older people get dementia. It is not a normal part of ageing.
Dementia can happen to anybody, but it is more common after the age of 65 years. People in their 40s and 50s can also have dementia.
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