Dementia - an overview

Dementia is a condition that affects a person's thinking, their behavior and their ability to perform everyday tasks. It is an umbrella term that describes a collection of symptoms, not one specific disease.

Dementia although is not a normal part of ageing, it is most common in older people, although it can come on in a person's 40s or 50s.

Over a period of months or years, someone with dementia gradually:

  • lose their memory
  • have a personality change
  • lose interest in life
  • become withdrawn
  • lose their ability to care for themselves and for others around them
  • take longer for routine tasks
  • unpredictable with emotions
  • speech problems such as forgetting simple words
  • abstract thinking
  • misplacement of objects regularly

There are many causes of dementia, the most common are:

If you notice potential signs or symptoms of dementia in a friend or family member; it's important that the affected person sees a health professional.

For information about causes, how dementia is diagnosed, treatment and care options and how to reduce risks or delay the onset, and to read the full article, please visit: