Dementia Fact sheet
Key facts
- Dementia is a syndrome in which there is deterioration in memory, thinking, behaviour and the ability to perform everyday activities.
- Although dementia mainly affects older people, it is not a normal part of ageing.
- Worldwide, 47.5 million people have dementia and there are 7.7 million new cases every year.
- Alzheimer's disease is the most common cause of dementia and may contribute to 60–70% of cases.
- Dementia is one of the major causes of disability and dependency among older people worldwide.
- Dementia has physical, psychological, social and economical impact on caregivers, families and society.
Dementia is a syndrome – usually of a chronic or progressive nature – in which there is deterioration in cognitive function (i.e. the ability to process thought) beyond what might be expected from normal ageing. It affects memory, thinking, orientation, comprehension, calculation, learning capacity, language, and judgement. Consciousness is not affected. The impairment in cognitive function is commonly accompanied, and occasionally preceded, by deterioration in emotional control, social behaviour, or motivation./.../
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WHO Outlines Global Dementia Research Priorities
More than 200 researchers and stakeholders provided research questions that were consolidated into 59 research avenues, which were scored by 162 researchers and stakeholders from 39 countries with regard to five criteria: potential for success, impact on burden reduction, potential for conceptual breakthrough, potential for translation, and equity.
The overarching research goals identified by the exercise are as follows:
"The theme of dementia risk reduction was the most dominant and received the highest overall research priority score," Dr Shah and senior author Tarun Dua, MD, MPH, of the WHO, in Geneva, Switzerland, note in their meeting abstract.
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