Dementia means loss of memory and of cognitive abilities. The most common cause of dementia is Alzheimer's disease. Depression, anxiety and psychosis are common in cases of dementia. The cognitive functions that can be affected in dementia include general intelligence, learning and memory, problem solving, perception, attention, concentration, judgment and social abilities. A diagnosis of Dementia requires that the symptoms result in a significant impairment in social or occupational functioning and that they represent a significant decline from a previous level of functioning.
+ Dementia is essentially a disease of older people.
+ Approximately 15% of people with dementia have reversible illness if treatment is initiated before irreversible damages take place.
+ At the initial stage of dementia, patients show fatigue, difficulty in sustaining mental performance, at this stage memory impairment is mild; people forget telephone numbers, conversations and events of the day.
+ Patients with vascular dementia may have neurological symptoms, such as headache, dizziness, and faintness, sleep disturbances etc.