What is dementia?

Dementia is characterised by significant cognitive impairment. Symptoms include memory impairment, aphasia (impaired language functioning), apraxia (aberrant movement), agnosia (inability to identify objects, people, sound or smell), and impaired executive functioning (for example, the inability to think abstractly, plan, initiate or stop actions). Other symptoms may include behavioural disturbances, anxiety, apathy, delirium, and mood and sleep disturbances. PTSD is associated with a high prevalence of psychiatric comorbidities, and aging may increase the risk of developing comorbidities such as dementia.

What is the evidence for dementia in people with PTSD?

Moderate to low quality evidence finds a small increased risk of dementia in older veterans with PTSD compared to older veterans without PTSD.

August 2021

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Last updated at: 2:50 am, 3rd August 2021
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