What is dementia?

What is dementia?

Dementia is a set of brain disorders that affect memory, thinking and the ability to interact socially. It is caused by damaged nerve cells that can occur in various areas of the brain. As a result, people experience dementia differently, depending on the area of the brain affected.

  Aging is the most robust risk factor for dementia. Its incidence and prevalence increase exponentially with age, where more than 90% of dementias appear after age 65.


Term used to describe a range of simptoms associated with cognitive impairment

Types of dementia are classified in several ways, usually according to what they have in common or if they get worse over time (progressive dementias). Types of dementias that are not reversible and worsen over time include: