Dementia: Overview Dementia is a wide medical term used for describing a number of brain-related (neurocognitive) disorders which can affect the day-to-day activities and interpersonal relationships of the sufferers. The disorders which are generally categorized under the term Dementia commonly includes Alzheimer’s disease, Parkinson’s disease, Vascular Dementia, Lewy Body Dementia, Creutzfeldt-Jakob disease (CJD), Huntington’s disease, and ALS (Lou Gehrig’s disease…