Dementia

Dementia

14 May 2019

• 中文

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. 

Dementia results from a variety of diseases and injuries that affect the brain, such as Alzheimer disease or stroke.

The number of people living with dementia worldwide is currently estimated to be around 50 million. This number is expected to triple by 2050. Dementia can be overwhelming, not only for the people who have it, but also for their care-givers and families. A better understanding of dementia is needed in all countries, to help break down the stigma and misunderstandings that are still widespread and, for many people, prevent diagnosis and care.

Related

Dementia fact sheet

WHO/N. Nair

Dementia is a public health priority

In recognition of the importance of taking action on dementia, the World Health Assembly, WHO’s primary governing body, endorsed in 2017 the Global action plan for the public health response to dementia. This document provides the framework for governments, researchers and civil society organizations to take action on dementia over the next decade.

Cathy Greenblat

Dementia is not a normal part of ageing

Although dementia mainly affects older people, it is not a normal part of ageing. It is caused by a variety of brain illnesses that affect memory, thinking, behavior and the ability to perform everyday activities.