Dementia, Delirium and Depression 13 Running Head: DEMENTIA, DELIRIUM AND DEPRESSION1 Dementia, Delirium and Depression Name: Institution: Introduction This article is meant to create a clear relation between dementia, delirium and depression and how they are related to Mr. David got diagnosed 20years with cerebrovascular disease that greatly affect his speech and its one of dementia symptoms that Mr. He also suffers from Type 2 diabetes which is often caused by the lack of the production of insulin