Dr. Rohit Gupta, Dementia Specialist in Faridabad from Escorts Hospital, Faridabad deals with all cases of dementia and memory impairment. Dementia is a progressive and degenerative disorder of the brain caused by multiple cognitive deficits due to impairment in memory. Common causes are Alzheimer’s disease, vascular dementia, normal pressure hydrocephalus(NPH), frontotemporal dementia, and dementia with Lewy bodies.